Portable Document Format (PDF) is an open standard for document exchange.

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94
votes
11answers
80k views

How to merge several PDF files?

There are a lot of software in Windows to merge PDF files but how can we do the same in Ubuntu?
77
votes
20answers
31k views

How can I highlight PDFs?

Currently I need to highlight certain sections in PDFs. These highlights would need to be saved. What tools are out there to do this on Ubuntu?
54
votes
6answers
129k views

How to open a PDF file from terminal?

I used to work on the Mac terminal before and I used: open file2open.pdf and the PDF file would be opened on preview or whatever my default viewer was. When I use it in the terminal in Ubuntu I ...
53
votes
8answers
108k views

Which PDF Viewer would you recommend? [closed]

Which PDF-Viewer would you recommend to use in Ubuntu? At the moment I use the standard document viewer (Evince) but I'm missing features like stageless continous zooming.
42
votes
9answers
41k views

How to Edit PDFs?

I typically have two needs: Scenario A. Change a single PDF page. In this case I have a PDF but not the original source file used to create the PDF. I don't want to try to recreate the document from ...
40
votes
6answers
19k views

How to convert PDF to Image?

I have requirement of converting PDF pages to images. There is a background image with some text written, so when I save this as image only background image got saved. Is there any software available ...
38
votes
14answers
17k views

Which programs can I use to edit PDF files? [duplicate]

I know that there is a very similar question, but I'm not interested in highlighting. What I'm looking for is some tool in Linux to edit pdf files. I've tried pdfedit which did the work for me, but if ...
37
votes
6answers
35k views

Jpeg files to pdf

I have many jpeg files in a directory, and I want to convert them to pdf and concatenate them together to make a document. How can it be done? I'd prefer the command line, as it will be faster.
35
votes
7answers
31k views

Why doesn't Chromium have “Chrome PDF Viewer” plugin?

The Chrome build from Google has a Chrome PDF Viewer plugin which is really nice. But, the Chromium builds don't seem to have it (nothing shows up in about:plugins). How do I get the plugin in ...
29
votes
11answers
14k views

How can I edit a picture into an existing PDF file?

I have a scanned PDF file which is an application form, and a picture which is the scanned version of my signature (for example, this one) and can be in any image format such as EPS or PNG. I would ...
28
votes
6answers
38k views

How can I convert an ODT file to a PDF?

Does anyone know how to convert an ODT file (LibreOffice) to PDF?
27
votes
4answers
5k views

How can I instruct Nautilus to pre-generate thumbnails?

I have a large library of PDF documents (papers, lectures, handouts) that I want to be able to quickly navigate through. For that I need thumbnails. At the same time however, I see that the ...
26
votes
11answers
19k views

How can I extract a page range / a part of a PDF?

Do you have any idea how to extract a part of a PDF document and save it as PDF? On OS X it is absolutely trivial by using Preview. I tried PDF editor and other programs but to no avail. I would like ...
26
votes
9answers
23k views

Is there software that can fill PDF forms?

I have some PDFs which are actually forms, with fields to fill. Is there some software that can fill those fields?
21
votes
5answers
5k views

Is there a tool that can add a password to a PDF file?

I've found lots of info on decrypting PDF files, but none on encrypting them. What tool can do this for me? Edit: There are two good answers below, but in my specific case the PDF was a scan, not a ...
21
votes
3answers
12k views

Scan many pages straight into a PDF

Is there some easy to use program in Ubuntu that can scan many pages straight into a PDF file?
21
votes
2answers
15k views

How to edit pdf metadata from command line?

I need a command line tool for editing metadata of pdf-files. I'm using a Aiptek MyNote Premium tablet for writing my notes and minutes on this device, import them later and convert them to pdf ...
21
votes
6answers
37k views

PDF to word conversion software?

Is there any free software available on Ubuntu that can convert a pdf file to a .doc file?
20
votes
3answers
18k views

How can I convert a ppt to a pdf from the command line?

I have a folder containing a bunch of ppts, each of which I'd like to convert to an individual pdf. I'm using Ubuntu 10.04 with whatever comes installed on it.
19
votes
3answers
4k views

How do I search a PDF file from command line?

I'm checking references of a paper and want to find the positions in the body where some paper (in the references list) is referenced. Is there a PDF editor which supports search via bash and extract ...
18
votes
4answers
21k views

Is there a way to convert a PDF file to ePUB format WITHOUT using Calibre

I'll tell you clearly and loudly: I don't like Calibre! So, how can I convert PDF to ePUB without it?
17
votes
4answers
6k views

Adding pages to existing pdf file

I have a PDF document with over 300 pages. I need to add 15 pages in between - after page 180. How can I do it?
17
votes
5answers
12k views

Converting DJVU to PDF

I want to convert a DJVU document into a PDF document, separating and preserving the text layer and the images while also keeping the structure from the DJVU. How can I do this in Ubuntu? (I will ...
16
votes
3answers
8k views

Reduce filesize of a scanned PDF

I've got a PDF of a scanned document that's around 20MB and I need to drastically reduce the filesize to be able to email it. I've tried gs -sDevice=pdfwrite -dCompatibilityLevel=1.4 ...
15
votes
8answers
3k views

Renumber pages of a PDF

I want to edit the metadata of a scanned PDF to assign custom page numbers to different pages. For example, what are now pages 1-3 I might want to call i, ii and iii, and what are pages 4-10, I want ...
15
votes
8answers
4k views

Create pdf from HTML book

There are some sites that provide books as HTML pages (e.g., legal stuff). What can I use to create a PDF book from these pages, based on the already-existing structure? In Windows there is Adobe ...
15
votes
5answers
8k views

pdf to mobi convertor

is there any application in natty which can convert a pdf file into a mobi file?
15
votes
1answer
5k views

View PDF with “fit to page size” by default

Whenever I open a PDF file in Ubuntu, the document viewer shows that file zoomed so that the page width fits to the screen width (and the lower part of the document is not visible). Due to the large ...
14
votes
5answers
24k views

Is there a better pdf to text converter than pdftotext?

I'm using pdftotext (part of poppler-utils) to convert PDF documents to text. It works, for the most part, but one thing I wish it did was to insert blank lines between separate paragraphs instead of ...
14
votes
7answers
8k views

Free pdf reader that supports taking notes (and bookmarks)

I learned about the PDF possibility of taking notes which are then stored with the document, usefull when reading ebooks. If the note taker also supports some math notation, that would be wonderful! ...
14
votes
7answers
14k views

How to Install Okular 0.15 on 12.04 LTS?

See here for reference: http://okular.kde.org/news.php The new version includes an option to save annotations to the PDF file itself. That's why I am very eager to try out. Is there any PPA from ...
14
votes
4answers
17k views

Command line tool to crop PDF files

I am looking for an open source command line tool to crop PDF file just like we can do in Adobe Acrobat Pro. I have tried PdfTk, ImageMagick, PyPDF, and GhostScript—all with no success so far.
14
votes
4answers
6k views

Splitting a PDF page in two

I have a PDF file that was the result of the scan of a book. In this file 2 pages of the book correspond to 1 in the PDF. So when I see a page in the PDF file I'm actually seeing 2 pages of the book. ...
14
votes
3answers
647 views

how do I make nautilus to automatically suggest the folder 'Documents' for pdf files?

In Ubuntu 11.10, how can I set up nautilus so that when I select "Save as..." on Evince or some other PDF viewer, for a PDF I downloaded with the browser, it automatically suggests the folder ...
13
votes
5answers
6k views

Getting the word count of a pdf document in Evince

Is there any way I can get the word count of a PDF document that I'm viewing in Evince, Ubuntu's default pdf viewer? I'm able to convert the documents to text files and get the word count from the ...
13
votes
1answer
14k views

How do I convert a PNG to PDF with only the default packages on 11.10?

Openning a png file in ubuntu, I can see the menu item for 'print to file'. How can I do the same on shell? PS: I prefer installing no extra package, due to lack of root access. EDIT: the operating ...
13
votes
4answers
11k views

Convert PDF to image

I'm trying to convert a PDF file (it's a book) into an image. When I using convert like this convert book.pdf book.jpg or like this convert book.pdf book.png then I get this warning Warning: ...
13
votes
2answers
7k views

Diff of two pdf files?

I'm looking for a good program to show me the differences between two similar pdf files. In particular, I'm looking for something that doesn't just run diff on an ascii version (with "pdftotext") of ...
13
votes
1answer
3k views

How can I use Firefox's built in PDF viewer?

I downloaded firefox 19 and executed it on my Ubuntu 12.04 machine. I went to a website with pdf links, clicked on one of them, hoping to have it shown in the built-in pdf viewer in Firefox 19, but ...
12
votes
5answers
10k views

How can I annotate PDFs so notes are compatible with Adobe Reader for Win/OSX?

I am looking for a tool which allows me to annotate PDFs in Ubuntu and share the PDFs with annotations with people who use OSX or Windows. I cannot assume that the others can or will install special ...
11
votes
5answers
15k views

Create a single pdf from multiple text, images or pdf files

I have a bunch of text files, images and pdf files which I want to convert into a single pdf file. How do I do it?
11
votes
9answers
6k views

What is a good Foxit reader equivalent (or other PDF editor)? [closed]

On Windows, I have found Foxit Reader to be quite handy when I need to highlight texts in PDF document, make annotations, etc. etc. Unfortunately, I have not yet found product as user friendly (which ...
11
votes
2answers
3k views

Recursive HTML to PDF

I have a folder with this structure: /main-folder /index.html /subfolder1 /index1.html /file1.html with many sub folder and only html files... i want to convert all them to pdf using only ...
11
votes
4answers
230 views

Search text within multiple pdfs and docs

I got a bunch of notes written by other students, but they are from an old textbook that didn't deal with everything in the same order, so I need to search through the notes for every chapter (each ...
11
votes
3answers
2k views

Can I make PDF the default for 'print to file'

I am using 10.04 and I use the 'Print to File' feature a lot but it's annoying to have to change the output option to to PDF each time. Is there a way to make it the default?
11
votes
2answers
4k views

How to stop Nautilus from creating thumbnails of specific file types?

I'm trying to stop Nautilus from creating thumbnails of PDF files. In another thread on 'Ubuntu forums' someone said to open gconf-editor and disable the PDF entry in the '/desktop/gnome/thumbnailers' ...
11
votes
5answers
4k views

Adding OCR info to a PDF

I have a good quality scan of a document; such scan is in pdf format. How can I add ocr information to the pdf, so that it becomes searchable? By searchable I mean that the goal is that when viewing ...
11
votes
2answers
4k views

A PDF viewer supporting SyncTeX for Gnome

I am looking for a PDF viewer for working with LaTeX and SyncTeX (forward and inverse search) under Gnome. I know from previous questions in various forums that Okular has this feature, but I prefer ...
10
votes
5answers
23k views

How do I edit text in a scanned .jpeg?

I need to upload a scanned image as a PDF document. After scanning the document, I have a .jpeg with small text that I want to edit before converting to PDF for the upload. I have never done this ...
10
votes
7answers
10k views

How to print a regular file to pdf from command line

In gedit, printing a file gives an option of printing to file where the file can be saved as a pdf. How can I do the same thing from the command line?