Portable Document Format (PDF) is a platform-independent standard developed by Adobe System in 1993 for document exchange.

learn more… | top users | synonyms

32
votes
17answers
3k views

How to print documents to pdf [closed]

I like to print PDFs of my documents. I've been using PDFCreator. Is this a good choice, are there any better solutions?
19
votes
6answers
3k views

Convert PDF to Word document? [closed]

Any software/idea how to convert pdf document to word document?
48
votes
9answers
42k views

Stop PDFs from displaying inside Google Chrome

When I click on a PDF link in Chrome, it opens automatically inside the browser window. How can I get it to download instead and open with an external viewer? Update: I implemented djhowell's ...
97
votes
16answers
154k views

How to compare the differences between two PDF files on Windows?

Do you know a good Windows software to compare PDF files side-by-side and show the modifications between the two? It would be great if you can post both free and not-free products.
26
votes
8answers
35k views

How to extract text with OCR from a PDF on Linux?

How do I extract text from a PDF that wasn't built with an index? It's all text, but I can't search or select anything. I'm running Kubuntu, and Okular doesn't have this feature.
22
votes
9answers
64k views

Batch-convert Word-documents to PDF's

Is there free a way to batch-convert many Word-docs - and just have them saved as [originalfilename].pdf?
20
votes
10answers
5k views

Free PDF Editor for Windows [closed]

I have some PDF files that I need to change/edit, not view. I'm running on Windows. What is the best package to get this for free (either freeware or opensource, not trial/shareware)?
26
votes
5answers
14k views

How to extract image from PDF file

I currently use Foxit's PDF reader, and I recently downloaded an image from the Internet, but it is inside a PDF file. How do I extract this image? Operating system is Windows 7.
12
votes
2answers
10k views

How to remove watermark from pdf using pdftk?

I need to remove some stupid email watermark that expands across all pages of a public domain book. I looked at pdftk man page and some examples but still can not figure out how to remove the ...
20
votes
3answers
14k views

How can I split a PDF's pages down the middle?

Does anyone know of a good way to split a pdf's pages down the middle into two new pages? To be clear, I'm not trying to split out already existing pages from a pdf; I am trying to create two new ...
10
votes
6answers
14k views

Convert PDF 2 sides per page to 1 side per page

How can I convert a PDF with 2 sides per page to 1 side per page?
10
votes
3answers
11k views

Removing the password from a PDF file

I have a couple of ebooks as PDFs with passwords, however my ebook reader (sony prs600) doesn't seem to support PDFs with passwords. What is the easiest of removing the password from a PDF (I know ...
4
votes
4answers
752 views

Convert PDF to ePub [closed]

I would like to convert a PDF file to ePub format for reading it on an iPhone. Is there an online/desktop tool that will allow me to do that?
23
votes
3answers
26k views

How can I fix/repair a corrupted PDF file?

Does anyone have any recommendation or procedures for repairing a corrupt PDF? When I open the file I get "There was an error opening this document. the file is damaged and cannot be repaired." ...
18
votes
5answers
5k views

search PDFs with non-standard character encodings

Some PDF files produce garbage ("mojibake") when you copy text (even though they render OK). This makes it impossible to search them (whatever you search for will not match the garbage). Does anyone ...
6
votes
8answers
2k views

How can I edit a PDF file? [closed]

I received this PDF file and need to make some changes in the document, is there any great free software available for me to do this?
7
votes
6answers
1k views

Is there a free way to compress a PDF?

I have several PDFs that are quite large (one is 80+ MB). Is there a free way to compress that PDF to a smaller size?
29
votes
3answers
12k views

Convert a PDF to greyscale on the command line in FLOSS?

I have a colour PDF file, and I'm going to print it out and then photocopy it in black and white. I'd like to know what it's like in B&W before photocopying it. Is it possible to 'greyscale' a PDF ...
26
votes
4answers
9k views

Make Chrome always open PDFs itself

I'm looking for a way to make Google Chrome always open PDFs with its internal viewer when I click a link, as opposed to downloading it to the default location. It works with most URLs, but some ...
10
votes
2answers
12k views

Using Ghostscript to convert multi-page PDF into single JPG?

I know Ghostscript can convert PDFs to JPGs, and in the case of a multi-page PDF, can rip each page to an individual JPG. But is it possible to have it rip them to one JPG, so that the pages are ...
16
votes
12answers
58k views

How do I save an image PDF file as an image?

I have a PDF that contains a scan image of a document. I want to save the contents of this PDF as an image so that I can then run it through an OCR program that only accepts .jpg, .png, and .gif type ...
15
votes
11answers
43k views

PDF has garbled text when copy pasting

I'm trying to copy and paste text from a PDF file. However, whenever I paste the original text it is a huge mess of garbled characters. The text looks like the following (this is just one small ...
5
votes
4answers
672 views

How do I convert this filetype to pdf?

This question is coming back often, and the general answers are very often the same. In an objective to concentrate useful information in one place, here is a community wiki about it. How can I ...
15
votes
4answers
32k views

How to disable automatic opening of PDF files in chrome [duplicate]

Possible Duplicate: Stop PDFs from displaying inside Google Chrome Chrome is opening the PDF files automatically and don't give option to save the file. How can i change this behavior?
1
vote
3answers
10k views

Download all PDF links in a web page?

Do you know a good software to download all PDF links in a web page?? Operating system is Windows 7.
4
votes
3answers
11k views

How to create PDF bookmarks from Microsoft Word?

I have a PDF file which I converted From Microsoft Word. Actually I'm working on an eBook and now I want to publish it as a PDF. How do I create PDF bookmarks, either through Word or through editing ...
26
votes
9answers
60k views

How to convert Word (doc) to PDF in linux?

I have a set of files in .doc format, that need to be converted to .pdf format. I am using Ubuntu linux.
43
votes
15answers
88k views

How to know which fonts are used in selected part of a PDF document

I'm using Foxit Reader as default PDF viewer. How can I see what type of font is used for a selected part of a PDF document? (If this can only be done with another software, I'd prefer a freeware as ...
18
votes
7answers
2k views

How to change internal page numbers in the meta data of a PDF?

I have a pdf document I created through non-Acrobat means (printing to pdf, then merging a bunch of pdfs), but I'd like to manually change the page numbers (i.e. the first several pages are simply ...
14
votes
8answers
22k views

How can I convert scanned images as PDF to a searchable PDF file?

I have a PDF of a scanned book. I'm looking for a free software that will perform OCR and then provide an option to save it as a PDF or document again. Is there one?
12
votes
11answers
38k views

How can I set my own bookmarks in a PDF?

I would like to save several bookmarks in a PDF document I'm reading, so that each time I open the PDF, I could re-browse to certain locations. How can I do this? Ideally, I would be able to assign ...
15
votes
10answers
119k views

Adjust PDF Contrast with Adobe Reader/Acrobat?

We get PDF's from our professor to read for homework but they're often scanned documents, is there a way to adjust the contrast of the text to make it easier to read? Edit: I've got Photoshop but is ...
9
votes
6answers
27k views

From Word to PDF including bookmarks

I created a Microsoft Word file with Office 2007 and exported it via Jaws PDF Creator. Now I want some bookmarks or any kind of "linking-action" that makes it easier to navigate through the document. ...
16
votes
7answers
24k views

How to merge multiple PDF files onto one page with pdftk?

I have a range of PDF files 1.pdf, 2.pdf, etc. that I would like to merge into one file, with all the PDFs tiled on one page. Currently, I have tried pdftk to merge these files, but they are put on ...
4
votes
8answers
11k views

Adobe Acrobat: How to batch to combine multiple pdf files?

I have 3 folders: Folder 1 Folder 2 Folder 3 In each folder I have 5 pdf files: Folder 1 file1.pdf file2.pdf Folder 2 file1.pdf file2.pdf Folder 3 ...
10
votes
4answers
4k views

Software to read PDFs with inverted colors (Windows)

I sometimes want to read a long PDF file in a computer, but because white background I can read only a few pages until my eyes weep. Is there any software to invert colors of a PDF (PDF converter, ...
6
votes
7answers
3k views

Extracting text from a .PDF scanned book [closed]

I have a scanned a book in PDF format, but the quality is rather poor: (The language is Romanian and it's a medical physiology book, in case you were wondering) I want to extract text from the ...
5
votes
4answers
6k views

Batch convert TIFF images to PDF?

Are there any free utilities that will batch convert TIFF files to PDF? I've tried PDF printers like PrimoPDF & CutePDF, but these seem to require a GUI click to confirm each filename. What I'm ...
7
votes
4answers
7k views

What free software can convert fillable forms pdf to fillable and **savable** pdf?

There are files with fillable but not savable forms. Acrobat Reader does not allow save such documents. What free software can convert fillable forms pdf to fillable and savable forms pdf?
5
votes
1answer
2k views

Where does Okular store the PDF annotations?

I am using Okular in Ubuntu 11.04 as it has support to annotations and is faster to do a quick find across large documents. The annotations are not stored in the document, but are stored as metadata ...
5
votes
2answers
295 views

Creating PDF Documents

When creating PDF documents a friend of mine told me that doing a "Save As" is generally a better way to create a PDF doc, the way that I generally created them was through the "Print to PDF" option ...
5
votes
4answers
14k views

How to convert Word (doc) to PDF from Windows command line?

Anyone know how to convert word files (.doc) to PDF using the command line in Windows? We were using the service of OpenOffice, but in documents that have many tables and images, it ends up ruining ...
5
votes
3answers
3k views

How to do OCR on a PDF document? [duplicate]

Possible Duplicate: How to extract text with OCR from a PDF on Linux? I have a few documents in English and Hebrew that I scanned in and converted to PDF format. Is there some free or ...
3
votes
3answers
7k views

Saving a Word document to PDF, how to create a table of contents?

How do I create a table of contents when saving a Word document and saving as a PDF file? That is, when you buy an e-book, it has a nice table of contents in the left pane that remains there while ...
2
votes
1answer
3k views

Convert a colored PDF into a white/black

On Debian Sid, I have a PDF with a blue background and yellow font. I've searched a lot on Super User but i haven't found anything useful for me. I have tried to convert the PDF into a grayscale one ...
2
votes
2answers
1k views

Print only the annotations of a pdf

I have a pdf that has been annotated, and would like to print (or extract) just the annotations (it's a long pdf that's relatively sparsely annotated). Is this possible?
5
votes
1answer
3k views

Disable “This type of file can harm your computer” nag in chrome

I don't want to see that Discard/Keep dialog when downloading a pdf file in browser. I just want it to automatically save to my default location. I'm using chrome on Ubuntu 13.04.
4
votes
3answers
3k views

How can I copy this quote from PDF? [duplicate]

Possible Duplicate: PDF has garbled text when copy pasting I'm reading a PDF copy of Jerome H. Friedman's paper "Data Mining and Statistics: What's the Connection?" using Google Chrome. It ...
4
votes
2answers
755 views

Is it true that strongly-password-protected PDF can be cracked?

I want to protect my PDF with a strong password. But I heard that it can be cracked. Is it true that strongly-password-protected PDF can be cracked? Edit: This is my real scenario. I want to ...
4
votes
7answers
3k views

Free way to perform a text search in PDF and Excel files

Is there a free way to perform a text search in PDF and XLS (Excel spreadsheet) files? I want to be able to find a specific word in these type of files. Is there a free tool for that?