This post is long.

One thing I've been lusting over is iPod Touch's capability to display PDFs in their native forms. I have finally acquired a 16g 'Touch (Why not call it iTube or youPod? Would be less iconic, more fitting), and I've been trying to turn this thing into a pocket library. Music and videos be damned.

I know the issue of storing and viewing PDFs locally on iphone/touch is not a new one, but it certainly is one i would love to see resolved if and when local storage can be accessed easily. Since touch users cannot yet use the Mail .app, the only way store and accessing any file not accepted by itunes is to force them into bookmarks and place the bookmark into the Touch's Safari. For more info on storing files locally onto the 'touch/'phone, see the blog entry here:
http://pimm.wordpress.com/2007/07/18/how-to-read-pdf-files-on-iphone-via-safari-instead-of-lame-email-attachments/


There is a definite need for storing PDFs in their original form, as opposed to converting each page into a JPEG and syncing them to the Touch's Album. This issue continues to be brought up even though it has been discussed and tried. Here is why reading off photos is no good as it stands:
1.) Splitting large PDFs, potentially hundreds of pages long into individual images is laborious and theoretically space-occupying versus a PDF.
2.) Currently, the iPod/iTunes software downsamples the resolution of any image it syncs into its photo album, severely degrading readability of text in an extracted page.
3.) Syncing images via iTunes limits the user to only one master photo library, preventing separation and organization of different pieces of literature.
4.) I like lists.

The method of embedding PDFs and other files (pictures, etc) into safari bookmarks works with the touch, and so far I know of two readily accessible implementations:

URI Kitchen (which from what I see has a limit <1 mb):
http://www.scalora.org/projects/uriencoder/
or http://software.hixie.ch/utilities/cgi/data/data

Filemark Maker:
http://www.insanelygreattees.com/news/?p=51#comment-15254
Filemark maker works pretty dern well, although I've run into some problems. See below...

**I posted a step-by-step guide for Windows users in getting this process working, entry #30 in this thread:** http://www.ipodtouchfans.com/forums/showpost.php?p=5148&postcount=30

Mac users can simply install Filemark Maker and drag a PDF file onto the program icon. A Safari temp page will load generated by Filemark with the clickable embedded link. Add the link to your bookmarks. Can't be any easier.


How to repair Safari if you stuffed too much into the bookmark file: (Resummarized this from a post farther down in the thread.) If you get Touch's Safari overloaded with PDFs and its bookmark database exceeds the maximum functional size as mentioned above, you can repair Safari without reformatting the player by replacing the bookmarks containing embedded information (pdfs, etc) with identically-labeled bookmarks that contain shorter information. This effectively "updates" the touch's bookmark database with a smaller one thereby removing the PDF info and restoring Safari to a functional status. The easiest way to go about this: bring up "all bookmarks" on your computer's Safari. For each link containing embedded PDF information, change the destination "address" to something short (can be a url, or just gibberish like "asdkjfhshk"... it just has to be enough to placehold the bookmark entry so it can exist to sync). Caution: embedded PDF/image info is usually too long to view in its entirety, so be sure to remove the entire entry before replacing. Once done, re-sync your computer's bookmarks with the Touch, and be sure to click on the "replace bookmarks" option before doing so. This should work.

If you don't have the pdf-embedded bookmark entries (or even the names of the bookmark entries), you're kinda screwed, and as far as I know, you'll have to reformat the Touch to get its safari back into working order. I'm sorry.


You can use a Bookmarklet to enable finding phrases in Safari which works when viewing XLS and DOC files but *not* PDFs.
To increase visibility of this solution I'm linking to my post from here:
http://www.ipodtouchfans.com/forums/showthread.php?t=945

One drawback to this method is that it cannot jump-to found phrases.


I've cleaned up this post simply because I ended up answering my own question after trial and error and feel like I should share what I found to keep others from making the same mistakes I did:

> Touch's Safari starts slowing down the larger the bookmark database gets. After having added approximately 4mb of embedded information into the bookmark database, Safari ceases to function and after having loaded on the touch, it hangs, then crashes. Incidentally, pdfs can be successfully embedded into the bookmarks and look fantastic when viewed.

> Filemark Maker has a couple issues in its native form which prevents successful adding of embedded info directly to bookmarks for larger files (1.5-2mb) as well as ones with long or weird filenames. This is due to Filemark Maker generating a clickable hyperlink based on the filename. This issue can be fixed by deliberately toying with the source code that insanelygreattees made available for download. If you have no idea what I'm talking about, then I don't either, heh.

> After a long 2 week battle, I have declared that right now, my dreams of storing multiple, lengthy, picturesque textbooks via file embedding is bunk as it encroaches on some sort of memory limit. It's a shame, since the best thing that this touch is capable of it can't actually do very well out of the box.


Frankly, I'm feeling kinda screwed that the Touch can't do any of this out of the box. Not having a phone in the device is enough to cripple functionality-- wifi doesn't exist everywhere anyways. We're already paying $300+ for it, why not just let us use the same wi-fi programs??

I have .pdf of a textbook for a class that is about 3 mb that I would love to be able to view on my Touch. The .pdf is password protected, and I doubt I could convert it to .html because it's filled with mathematical equations. I don't have my Touch to test it out yet, but does anyone know of a way that I could do this?

well I'm starting to understand that my initial problem is not filemark's fault but perhaps safari's... when viewing the page source, the actual full ahref with the file is there! I even tried running the filemark perlscript from a windows machine and in the generated HTML page i could see the ahref file contents in the source even for files that i had aforementioned trouble with. Seeing as safari refuses to display the link in the web page, I tried pasting the link contents directly into the safari address bar. However, safari refuses to paste the whole string. Damn safari. I'm stuck again.

And Matt, I'd imagine that regarding converting a math document into html, you'd still have to embed it into a URI. Furthermore, converting to html leads to loss of equation formatting and probably images too... We're both stuck.

i just viewed the iPhone manual no problem.

you're goin about it all wrong,

open any PDF on a mac using Preview, go to File --> Print --> PDF(dropdown) --> Save PDF to iPhoto

from there, create a new album called PDFs or whatever...

sync up that album to your iPoT!!!!


Simple, painless and fun!

UPDATE:

just did it, added the users guide for the iPoT from apple to my Touch, considering the images are nearly 1 MB a piece, they dont look so hot!!

open any PDF on a mac using Preview, go to File --> Print --> PDF(dropdown) --> Save PDF to iPhoto

The problem with that for me is that the document prompts for a password because it has a restriction against printing.

The problem with that for me is that the document prompts for a password because it has a restriction against printing.

oh, that sux.

if it isnt too many pages, do a print screen of each one and photoshop out the borders that dont belong, then re compile it to a pdf, or use the aformentioned instructions to get it on the iPoT

Just get some PDF password removing software. MacUpdate has some and if you have Windows there are loads of them. I have this (http://www.adultpdf.com/products/pwdremover/index.html) for my Windows box and it's worked on everything I've tried it on.

if it isnt too many pages, do a print screen of each one and photoshop out the borders

Ha it has 466.

Just get some PDF password removing software.

Yeah, I'm in no rush now, but that's probably going to be the route I'm going to go. The professor didn't require us to buy the book because it was available online for free which was great, but since it's a locked .pdf, it has been a pain to handle. It'd be nice to have it wherever I wanted it.

There are ways around a password locked pdf..

There are ways around a password locked pdf..

no, the ones from the IRS are almost completely un-crackable.


you can, however, use adobe acrobat Pro to change the permissions of the document to allow it to print assuming you have the password in the first place...

yeah pulling each page from a pdf document that's 877 pages big and converting it into an image leads to very poor results-- then again, having to drag through 877 pages to get to the index of a textbook isn't any fun either.

Unfortunately, for me converting pdfs to photos doesn't really address the issue.

I ended up answering my own question earlier in any case: I adapted the perl script source code for filemark maker, to embed uri's directly from a command line in XP's DOS analog (dirty, I know). The problem I was having with links disappearing in the generated HTML files with filemaker in its current release build is centered on the name of the generated hyperlink determined by the filename itself which for some reason reads as null and hence produces no clickable link.

Simply changing the "a href" link text to something static fixes the issue.

However! The next issue is that safari doesn't really like large URIs... Loading a 6 mb hyperlink takes 5-6 minutes. I don't know if it's a windows thing or what, but once I synced the pdf/URI files from windows to my Touch, i pretty much crashed Touch's Safari completely: it loads the empty page in safari, hangs for 3 minutes, then forcefully exits. I'm having to reformat the pod and will try again...

music and video be damned.

yeah pulling each page from a pdf document that's 877 pages big and converting it into an image leads to very poor results-- then again, having to drag through 877 pages to get to the index of a textbook isn't any fun either.

Unfortunately, for me converting pdfs to photos doesn't really address the issue.

I ended up answering my own question earlier in any case: I adapted the perl script source code for filemark maker, to embed uri's directly from a command line in XP's DOS analog (dirty, I know). The problem I was having with links disappearing in the generated HTML files with filemaker in its current release build is centered on the name of the generated hyperlink determined by the filename itself which for some reason reads as null and hence produces no clickable link.

Simply changing the "a href" link text to something static fixes the issue.

However! The next issue is that safari doesn't really like large URIs... Loading a 6 mb hyperlink takes 5-6 minutes. I don't know if it's a windows thing or what, but once I synced the pdf/URI files from windows to my Touch, i pretty much crashed Touch's Safari completely: it loads the empty page in safari, hangs for 3 minutes, then forcefully exits. I'm having to reformat the pod and will try again...

music and video be damned.

how exactly are you storing/viewing HTML files on your iPoT if they are local files?

I don't view html on the touch. When you use filemark you'll see that during the process of generating an embedded PDF it creates an html document on your computer containing the embedded link. Aforementioned empty page on touch refers to about:blank or the like.

so, you can view pdfs on the device using....

you're goin about it all wrong,

open any PDF on a mac using Preview, go to File --> Print --> PDF(dropdown) --> Save PDF to iPhoto

from there, create a new album called PDFs or whatever...

sync up that album to your iPoT!!!!


Simple, painless and fun!

UPDATE:

just did it, added the users guide for the iPoT from apple to my Touch, considering the images are nearly 1 MB a piece, they dont look so hot!!

is there any way to use it with windows?

Cheers,
Ben.

Would like to put pdf's of papers from journals on my ipot. I used the method mentioned earlier by clicking print in Preview and selecting save in iphoto. But when i sync itunes optimizes the image file. This makes it real blurry and unreadable. Is there a way to stop itunes from optimizing the photo before sending it to ipot?

There isn't a way for the touch to stop resampling images which is precisely why finding a way to put the original PDF on the device locally is of such high priority for me. For the implementation noted at the head of this thread, see the first post and the link below:
http://pimm.wordpress.com/2007/07/18/how-to-read-pdf-files-on-iphone-via-safari-instead-of-lame-email-attachments/
This method can be applied to literally any file, including full resolution jpegs. However, even with jpegs, there is an upper resolution limit before safari crashes, and splitting pdfs into images is frankly impractical. Syncing safari bookmark requires Safari on a computer (perhaps also can be done with any other browser that itunes recognizes as syncable). Yes, there is a Safari for windows. No, I don't like it either.

(Why not just view pdfs over wireless connections? Not everone is able to frolic in Job's limitless wifi wonderland... try visiting a county hospital some time, hehe) I would also love to store journal articles on local touch memory. Then again, I would have also liked an option to jump-to-page on pdfs which this thing doesn't have. But heck, what do I know? I'm just a customer.

Piggybaking PDFs into links in safari's bookmark database works as described in the link above, but safari crashes after the bookmark database exceeds approx 4-5 mb cumulative. This is evidently not a function of the PDF file size as the touch is able to load and view 9 mb pdfs via wifi successfully albeit slowly. Because of these drawbacks I have given up trying until this device does in fact become hacked, seeing as my needs are too sizeable for current methods. I've already had to format my device once due to intractable crashing.

Oh for future note: if you do put too many pdfs in your bookmark database and safari won't stop crashing, you'll have to reset safari's bookmark database. Go back to the computer you synced safari and *change* the destination addresses from the actual base 64 encoded file data to something else like a real url or just small random crap such as "adkhflakljdhf". Resync safari. It is important that the bookmark labels remain the same. Else you'll have to really format to get the bookmark links to reset.

Would like to put pdf's of papers from journals on my ipot. I used the method mentioned earlier by clicking print in Preview and selecting save in iphoto. But when i sync itunes optimizes the image file. This makes it real blurry and unreadable. Is there a way to stop itunes from optimizing the photo before sending it to ipot?


i thought i remember seeing an option for "send full sized photos to iPod" or something, but i never saw it again, it was in a popup box...

i thought i remember seeing an option for "send full sized photos to iPod" or something, but i never saw it again, it was in a popup box...

you most probably saw it in the older versions of iTuens, when you ask to sync photos,

Cheers,
Ben.

Can't we all just use Gmail to set up a filter called "PDFS"? Send yourself the pdf via email and then open the attachment when you want to view the document.

could that work?

Sure that would work well, but the whole idea was to not have to rely on an internet connection to access pdfs. In that scenario, if we cannot access Gmail, we're stuck with nothing.

As a winXP user, I have followed this thread with interest because it addresses a similar situation I am attempting to solve. If this solution is viable, it makes the purchase of a touch a done deal.

My inventory Excel spreadsheet is ~580KB. Following the methods you outline, it appears transferring the file onto the iPod touch is possible.

However, since this spreadsheet is 3600 lines long, how fast can you search for individual items within the sheet once it's stored locally?

Who knows, maybe Steve will give us a Newton for Christmas:D

This doesn't always meet the needs, but

www.readdle.com gives you 500mb of free storage of .doc, .xls, .pdf and more. Access them via Touch safari.

Hourog,

The Touch views xls files via safari natively, similar to the iPhone, with embedding an xls into a bookmark, this is very easily done. Unfortunately, what you're thinking about is probably going to land you waiting till something changes, as there is no way to easily scan forward or search for terms in xls or in any of the aforementioned file formats.

Despite being visually excellent, Safari on the touch/iphone implements very rudimentary user control options in its file viewer. This is bad, since pdfs can be hundreds of pages long, and viewing a new file always begins on the first page, meaning to get to the index you'll have to slide through hundreds of pages to get to the end. In terms of excel spreadsheets the data is viewed as 'locked' in the sense that it's read-only without any individual selectable elements.


From the focus of power-users, this class of Apple device should have been 2 versions of more or less the same thing: one with a phone, and one without but with wifi, both having an identical base application set. Of course, much of the targeted audience is unable/unwilling to realize that the Touch is anything more than a sexy new entertainment toy.

This all adds up to the touch designed for the passive end-consumer rather than those of us desiring a more productive business machine. Probably just means that Apple will predictably milk its multitouch interface soon towards that market in 3-6 months (what's all the murmur about the Newton revival that is astir these days??? heh).

Music and video be damned.

Appreciate the input guys - thanks to all for the replies.

hamchoba You are correct: not having a search function is a deal breaker. When I need information, I need it fast. Could not agree with your soapbox more: the touch *could* have negated the need to travel with a laptop, if only it had some basic PIM and Office functions. Then again, you mention, there is talk about Newton. Soon I hope.

donovant if only the touch had a way to enter a "control" function, Readdle, Google Docs, ZOHO or GridEdit might work, as I usually have an internet connection when needed. However, without the ability to do a search, these spreadsheets are too massive to be useful for ad hoc information queries.

is it feasible to open like 30 safari pages with pdfs and then just leave them cashed on the touch? basically, making it a temporary pdf and other media storage unit. when you finish reading the doc, just close the page. open new ones when you are in wifi network space.

It is very possible to do that. I've done it for awhile all last week, but eventually I do something to Safari to make it crash and I lose open browser pages, so it's not as reliable as I'd like.

I feel like an idiot asking this, and I am pretty computer savy, but can someone please walk me through setting this up on a PC?

I have Adobe Acrobat on my PC (although it locks up if you look at it the wrong way). I'd like to be able to easily import these .pdf (or better yet, .doc files) to the bookmarks of Safari.

I have no idea what to do.

Thank, guys

I know I'm one to post long entries, but this one will take the cake.

Duck, this isn't going to be easy with a PC, unless either of two scenarios qualify: (1) what you want to embed into a bookmark is less than 102400 bytes and can be processed via URI kitchen, or (2) you're somewhat familiar with running PERL script from a DOS command line.

Since working with PCs spefically hasn't really been covered yet, here's the process as I know it:

Software you need:
-> Safari for windows, installed, working.
-> functional version of iTunes for windows.
-> if using Filemark Maker, download the source code from: http://www.insanelygreattees.com/news/?p=51
-> if using source code, download and install a PERL script compiler (e.g. ActivePERL http://www.activestate.com/store/productdetail.aspx?prdGUID=81fbce82-6bd5-49bc-a915-08d58c2648ca)
-> if compiling source code, must have proficiency with DOS prompts.

********
The process of putting a file locally onto a Touch/Phone is broken into 3 stages
a.) Taking a PDF file or some other file we want to put on the iPod Touch and converting the data into plain text.
b.) Embedding the file data as plain text into a hypertext link recognizable by a web browser (safari)
c.) Adding the hyperlink to the bookmark database and syncing the entire database with the iPod Touch.


Steps a.) and b.) using URI kitchen for generating plain text data:
http://www.scalora.org/projects/uriencoder/
1.) provided that your file in question is less than 100 Kbytes, with safari, browse for the file in the specified box.
2.) click on "HTML" and "Base64" for encoding parameters
3.) If all goes well you will see that your file will appear as plain text behind a tag "img src=" you may need to view the web page source the extract the full data from the page. Select the entire text string starting with "data:text/html" all the way to the end. Do not copy surrounding quotes.
4.) Open safari and add a new bookmark (may have to create a random one just to get started) and in the destination address section, *paste* the entire data string, replacing what you had there before, if anything.

Steps a.) and b.) using Filemark Maker source code (seeing as there is no suitable working standalone program for windows).
1.) Download and unpack the Filemark Maker Source code, if still available
2.) Download and install ActivePERL or another suitable PERL compiler. If you're gutsy enough to compile and run code, I'll assume that you know how to handle setting paths and calls to distant .exe's on your system
3.) In a plain text editor, make the following revisions to the file "FilemarkMaker.pl"
$step1
<h1><a href=\"$text\">$linktext</a></h1>
Change "$linktext" to a message like "Link is here" without the quotes.

$outfile = '/tmp/FilemarkMakerOutput.html';
Delete "/tmp/" without the quotes.

`open -a Safari $outfile`;
Delete this line completely.


4.) In the windows command line, compile and run the file FilemarkMaker.pl by calling it through PERL.exe (syntax: "[ActivePERL install dir]\Perl.exe filemarkmaker.pl [File to insert]") What will spit out if all is well is "FilemarkMakerOutput.html".
5.) Open the HTML document in Safari. Right click on the text "Link is here" or whatever else you changed the link text to, and "Add to bookmark".
6.) You can do fancier things to this script to output an HTML based on input filename, as well as run a DOS batch to process all desired files in a given directory--but oh wait, this is a MAC fanboy forum! Heh. Topic for another day.


Step c.) using either of above methods: Syncing your embedded bookmarks
Before syncing your embedded bookmarks, watch out that the total size of what you put into your bookmarks doesn't exceed 4 mb or so. I can confirm that this causes Touch Safari to freeze and crash. Furthermore, the more you embed, the slower Safari's load time is on the Touch.

1.) Open Safari. Confirm that your links are present.
2.) Connect your iPod Touch or iPhone.
3.) Open iTunes if not already done.
4.) Under the Options tab on the device overview screen ("Your firmware is up to date, etc, etc.") Enable "sync bookmarks" under Safari. You may also opt to "replace bookmarks" if you so choose.
5.) Apply your setting changes, and re-click Sync. You may get a warning that what you're doing will change >50% of the bookmark links, but just go ahead.
6.) Once the sync is complete, disconnect the Touch/iPhone, open safari, open the bookmarks, and click on your file. If all went well, you'll see it loaded!

If you got Safari helplessly crashed, refer to my initial post at the beginning of this thread.

My vacation is pretty much over, so I think this may be the last really verbose post I'll have time for. I wish you all luck with the above as there is only so much I'll be able to troubleshoot. PERL isn't a language I was ever too familiar with. But like I mentioned before, with the apparent limitation of the Bookmark database crashing Safari when it gets too large as well as limitations to loading performance in Safari with bloated databases, this method is relegated to smaller (relatively for me anyway) embedded items. The practicality of this method is therefore limited, but it surely does the job despite being a cool parlor trick.

hamchoba U be da bomb............ ever consider writing how-to manuals?

Nicely done.

Oh, gawd... that is just too complicated to view pdf's. Someone should try to make a 3rd party app that views pdf's flawlessly. I'm crossing my fingers! :)

Oh, gawd... that is just too complicated to view pdf's. Someone should try to make a 3rd party app that views pdf's flawlessly. I'm crossing my fingers! :)

Exactly. I'd rather just upload them to the web and view them over WIFI. Sure it's not ideal but it's a lot easier.

Agreed.

Internet storage is probably the most convenient solution to this entire problem even though it sideskirts the issue entirely. Perhaps ultimately what I really need is an iPhone with a data plan. I've been so obsessed storing files locally on the Touch because my work depends on the ability to access large amounts of literature, and my workplace is so backwards it doesn't provide reliable (or any) wireless access. Plus pricewise, we all know that the PDF capablities of this thing surpasses anything else even remotely the same size as this save for laptops or UMPCs.

Wow... Thanks, hamchoba for the reply and help.
I read it...... read it again,.....and then read it a third and fourth time.
I then came to the conclusion that there is no way I am going to go through all of that just to hold the hundreds of small files (lyrics to songs) to have them available at any time. It would take forever.

YOHAN is right, there needs to be a third party app that will view them easily and instantly.

I am so bummed.....
:(

listen we got a right to be bummed, i am pissed off about so many things apple did to the iTouch, no PDF, no Flash its just crap, they should've said all this before they sold it.

Cheers,
Ben.

Please forgive me if this has already been said , but there are a few programs out there that will convert your pdf files into viewable jpeg files .

heres a link to the app http://pdf2psp.sourceforge.net/using.html

Please forgive me if this has already been said , but there are a few programs out there that will convert your pdf files into viewable jpeg files .

heres a link to the app http://pdf2psp.sourceforge.net/using.html

does it take long, and also is it good quality?

Cheers,
Ben.

Yes, like what was discussed before, jpegs are converted before they go into the iPot. They're good quality but when you zoom in... it just gets blurry. So viewing high res photos or portfolios or comic books or magazines can't really be done unless they are in PDF form. :(

true that. i wish iTunes didnt crapalize the pictures. i want my 14 MP porn files left at 14 MP

lol, i dont keep porn on the iPoT, unless circuit boards are considered porn... :)

No need to deny it, nobody holds it against you. Anyway. The key for documents is to get them into a word processor and change the page size so as you flick through the photos on the ipod you dont need to zoom. I use it for ebooks but its not ideal since it has no way to remember you place except you remembering the page number. If apple would just sell software for this i would buy it - a mail program for $15 and an iwork file viewer for $25 would be quite reasonable for us and make them some extra money. The only explanations I can think of for not doing that would be that their AT&T contract prohibits it or they're holding out to sell a more expensive PDA.

Many thanks hamchoba, that all worked just fine. I'd had FilemarkMaker working as a droplet on my Mac but really wanted it on my laptop PC too. So I got the script to work in Terminal on my Mac first, just to familiarize myself. Then installed ActivePerl on the PC and then got FilemarkMaker.pl to work there too. Never, never would have done it without your post. I hate doing anything but the same old, same old on my PC, they are so fragile.

Just email a pdf as an attachment to a gmail account. Then log on, and download the attachment. Works perfectly on my itouch....

Just email a pdf as an attachment to a gmail account. Then log on, and download the attachment. Works perfectly on my itouch....

Cool. But do you have to be online to view the attachment later?

wuts a pdf?

hamchomba, you're my hero. I'm on a PC; this would have worked for me had Safari allotted enough space in the 'address' field. For some reason, I can only paste about half of the URI.

Okay, so what about those PDFs with 300 or more pages? It would be a pain in the a$$ to have to flick through hundreds of photos to get to what you want... is there a way to organize them so it's easier to find them, such as in ebooks or another 3rd party app (when the iPod is jailbroken)?

what about landscape mode in pdf reader ? is it possible somehow ?

OK guys, what about this PDFViewer, the real catch for me is the idea that I have to load the PDF file into a certain directory that I have no idea how to get to.

Anyone have a step by step to download the PDF's from my PC to the correct directory (and I DO mean a step by step) because I'm lost when it comes to exploring this touch, its not like a normal XP file system.

OK guys, what about this PDFViewer, the real catch for me is the idea that I have to load the PDF file into a certain directory that I have no idea how to get to.

Anyone have a step by step to download the PDF's from my PC to the correct directory (and I DO mean a step by step) because I'm lost when it comes to exploring this touch, its not like a normal XP file system.

Nope - it's like a Mac OS X file system :D Or if you want to be specific, a Unix file system.

Anyways, if you haven't yet, there are instructions on how to SFTP or SSH into your iPod Touch on these forums - read them. No reason I should explain how to use SFTP when others have already done a good job of it. There's a whole noobs guide to using WinSCP.

1) All you need to do is SFTP to /var/root/Media (which should be the default directory when you connect).
2) Create a new directory called PDF.
3) Drop your PDFs into the new directory you just created.

Make sure your PDFs don't have long names or names with symbols (-, ', ", etc.) - the PDFviewer is pretty alpha so it'll chock on these names and just drop back to the springboard...