Questions tagged [pdf]
Portable Document Format (PDF) is an open standard for document exchange.
1,422
questions
791
votes
25
answers
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How can I reduce the file size of a scanned PDF file?
I have a 72.9 MB PDF file that I need to shrink to 500 KB or below.
The file was a JPEG image that I had scanned and then converted to PDF.
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779
votes
21
answers
709k
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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 ...
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596
votes
15
answers
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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?
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564
votes
13
answers
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How to convert PDF to image?
I have requirement of converting PDF pages to images. There is a background image with some text in my file, and when I save it as an image only the background image gets saved.
Is there any software ...
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433
votes
10
answers
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views
Convert a directory of JPEG files to a single PDF document
I have many JPEG files in a directory, and I want to convert them to PDF and concatenate them together to make a single document.
How can this be done?
I would prefer using the command line, as ...
- 4,481
285
votes
27
answers
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views
How can I highlight or annotate PDFs?
Currently I need to highlight certain sections in PDFs, or add annotations (comments/notes). These modifications would need to be saved.
What tools are out there to do this on Ubuntu?
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votes
5
answers
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Trouble with batch conversion of .png to .pdf using convert
convert /home/bill/TempScan/*.png myfile.pdf
gives error message:
convert-im6.q16: not authorized `myfile.pdf' @ error/constitute.c/WriteImage/1037.
Any help would be appreciated!
- 2,939
269
votes
16
answers
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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 ...
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264
votes
12
answers
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What PDF viewers are available for Ubuntu?
Every second e-mail I get suggests to download Adobe Acrobat reader, but adobe.com doesn’t provide a Linux version.
Which PDF Viewer are there available for Ubuntu?
I’m fine with partial solutions, a ...
256
votes
12
answers
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views
Extracting embedded images from a PDF
Before I started using Ubuntu I used Nitro PDF reader to automatically extract images from PDF files. Is there a PDF reader for Linux that does this?
I would like to be able to extract images faster/...
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votes
13
answers
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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 get ...
- 3,381
189
votes
21
answers
229k
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?
- 2,571
180
votes
11
answers
207k
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.
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votes
18
answers
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How can I install pdftk in Ubuntu 18.04 and later?
Is there any chance of getting pdftk working in Ubuntu 18.04?
I need this for creating PDF files with a watermark in shell.
Or, does anybody know a working alternative to pdftk to generate a PDF ...
- 1,949
164
votes
15
answers
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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?
- 2,843
162
votes
9
answers
111k
views
How to remove the password from a PDF?
I have a password protected PDF file. I know the password but in order to share the file, I have to remove the password from the PDF and share an unprotected copy. How can I do this in Ubuntu with or ...
- 6,312
159
votes
8
answers
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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 ...
- 3,028
120
votes
7
answers
144k
views
converting epub files to PDF format
I would like to know the ways in which epub files can be converted to pdf in ubuntu. Any method, GUI or command line conversion is fine as far as my epub gets converted to pdf. Thanks.
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119
votes
4
answers
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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 ...
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103
votes
4
answers
54k
views
Error during converting jpg to pdf
Each time I want to convert jpg file to pdf by this command
convert *.jpg pictures.pdf
I have this error message:
convert: not authorized `pictures.pdf' @ error/constitute.c/WriteImage/1028.
- 1,099
96
votes
13
answers
61k
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 ...
- 25.4k
94
votes
10
answers
145k
views
How to reduce the size of a pdf file?
I'm looking for a way in Ubuntu to reduce the size of a pdf (by reducing the quality of the images).
I know that this can be done in Ghostscript by typing the following command in terminal:
gs -...
- 1,041
86
votes
14
answers
126k
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 ...
- 1,067
85
votes
4
answers
86k
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.
- 1,775
84
votes
6
answers
121k
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 ...
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83
votes
6
answers
95k
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?
- 941
82
votes
7
answers
171k
views
How can I convert an ODT file to a PDF?
Does anyone know how to convert an ODT file (LibreOffice) to PDF?
- 3,059
79
votes
3
answers
145k
views
How to install a "pdf printer"?
Is there a way to install a printer that prints to pdf?
There's a lot of discussions about this in the web foruns, but none seens to work.
- 12k
71
votes
7
answers
62k
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 ...
- 2,708
71
votes
6
answers
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views
How does one fill and sign PDF documents on Ubuntu?
When using Adobe Reader on a Windows desktop, one can open a PDF and use the fill & sign option. This option does not seem to appear on the Ubuntu version of Adobe Reader. How does one fill and ...
- 815
70
votes
8
answers
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How to "save" a rotated pdf file
I have a pdf file shown upside down. So I use Okular to rotate it and it looks good. The problem is, The next time I open it with other software, it's still upside down. If I open it with Okular, it ...
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70
votes
5
answers
205k
views
PDF to word conversion software?
Is there any free software available on Ubuntu that can convert a pdf file to a .doc file?
- 1,735
67
votes
6
answers
55k
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?
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66
votes
2
answers
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imagemagick - convert not allowed [duplicate]
I have multiple *.jpeg pictures I like to merge into a single *.pdf file like so:
convert Blatt1.jpg Blatt2.jpg Blatt3.jpg Blatt4.jpg out.pdf
I am prompted with the following exception:
convert: ...
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63
votes
11
answers
55k
views
How can I add text and images (for example, a signature) to a PDF?
On occasion I receive forms to fill in as PDFs intended for printing (these are not true PDF forms, they do not contain fields). I would like to type onto them, and perhaps add a scanned copy of my ...
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63
votes
5
answers
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How can I convert a .tex file to a PDF via the command line?
Is there a package that contains a TeX to PDF converter/renderer available on Ubuntu 12.04?
If not, can you recommend a tool for me to download from elsewhere that can do this that is simple to ...
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62
votes
6
answers
58k
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 ...
- 3,663
60
votes
9
answers
44k
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.
...
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59
votes
13
answers
140k
views
How do I digitally sign a PDF with a S/MIME certificate?
I have already acquired a S/MIME certificate (a .p12 file) issued by an authority. Using it in Writer, I can digitally sign documents by following this procedure : How do I make a digital certificate ...
- 16.3k
56
votes
3
answers
73k
views
How can I export a PDF from GIMP with each layer on a new page?
I have multiple layers open in GIMP. I would like to export a pdf that has each layer on a new page.
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54
votes
9
answers
55k
views
Is there a pdf reader allowing me to change background color of (arXiv) pdfs?
Its quite common that one wishes or has to read lots of PDF files which are intended to be printed, but since one would read them only once, and one wishes to save some trees, one reads them on ...
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52
votes
7
answers
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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 ...
- 2,387
51
votes
19
answers
65k
views
Is there a better way to redact a PDF?
I had to print a couple of PDFs recently to send to someone, but I wanted to redact (black out) a couple small bits of text.
A quick google search didn't turn up any tools for this specific purpose, ...
- 2,116
51
votes
7
answers
30k
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 ...
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51
votes
6
answers
53k
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?
- 2,571
51
votes
5
answers
13k
views
How to keep zoomlevel in Evince constant after clicking a link?
I really love how Evince works but this little thing is annoying me so much. When I select a title or a subtitle from the table of contents it shifts the zoom. On windows it was just easy as pie with ...
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49
votes
5
answers
27k
views
Rotate a specific page of a pdf file?
I have a multi-page pdf file, and I want to rotate a specific page 90 degrees clockwise, to obtain a new pdf file which has the same pages as the original pdf, but with this specific page rotated.
How ...
- 13.4k
48
votes
11
answers
33k
views
Is there any pdf viewer with dark mode?
Basically, I want a viewer which has a night mode or a dark mode so that I can change a pdf with a white background and black text to a dark background and light coloured text.
- 2,739
46
votes
11
answers
73k
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?
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votes
3
answers
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views
convert ps to pdf
How do I convert *.ps file to a .pdf file? I tried several links given by google search, but either solution is really old and does not work for latest versions of ps and pdf files, or they do not ...
- 1,017