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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 sign PDF documents on a Ubuntu?

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  • 2
    To be clear it is not the Ubuntu version it is the version that Adobe chooses to make for Ubuntu. So I would be asking them.
    – David
    Apr 11, 2021 at 14:17
  • 1
    You have to install a later version (2015) usingplayonlinux and Wine. Please see this link >>> playonlinux.com/en/app-2653-Adobe_Acrobat_Reader_DC.html and come back here if you have any problems.
    – Raffles
    Apr 11, 2021 at 16:12
  • 3
    Does this answer your question? Is there software that can fill PDF forms? Mar 21, 2023 at 11:42
  • To make that clear: What you're asking is not actually (securely) signing a document, it is pasting a picture of a signature and saving it. Those two are not the same and should never be confused, although they constantly are. Once you paste a picture of your signature and distribute it, anyone with a computer can copy/paste it anywhere else, and no law can change that.
    – Zak
    23 hours ago

5 Answers 5

79

Using Xournal or Xournal++

How does one fill and sign PDF documents on a Ubuntu?

Not with Adobe unless you get them to add support for it.

Alternatives:

  • Install and open Xournal:

    sudo apt install xournal
    
  • Or install and open Xournal++, sometimes written xournalpp:

    sudo apt install xournalpp
    

(See this for a comparison between the 2; xournal++ is a rewrite of xournal)

and then ...

  • Choose "Annotate PDF" from the File menu and select the PDF to sign.
  • Click the "Image" button in the toolbar
  • Click on document
  • Select an image of your signature
  • Optional: export to PDF so you have a new copy

Screenshot of Xournal

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  • Unfortunately and inexplicably this didn't work for me, after selecting the image nothing happened. I wasn't even able to add a simple text for what matters with this tool.
    – ecoologic
    May 1, 2021 at 6:01
  • 5
    Works for me :-)
    – John Mee
    Feb 6, 2022 at 1:51
  • This works but does not create an identity-certified signature as Adobe Acrobat does.
    – Zatrapilla
    Aug 3, 2022 at 16:27
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    This works for me. Although I have been using xournal++ and as a last step "Export to PDF". Oct 24, 2022 at 10:35
  • @user5534993 neat. github.com/xournalpp/xournalpp.github.io/pull/23/files has a list of differences.
    – Rinzwind
    Oct 24, 2022 at 12:14
10

I managed to achieve using pre-installed LibreOffice Draw.

Open the file using LibreOffice Draw

  1. Right click on the file
  2. Click: "Open with other application"
  3. Type: draw and select "LibreOffice Draw"

Insert the picture of your signature

  1. From the top menu of Draw, click Insert
  2. Click image...
  3. Select an image of your signature
  4. Resize and drag where you need it

Export to PDF

This can be done either from the red PDF icon on the right side of the printer icon in the top left corner, or from:

File, Export As..., Export Directly as PDF

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  • 2
    I opened a basic PDF doc this way, and right away the page dimensions were off (paragraphs bleeding off the page edge). So... I'm gonna explore something else (online PDF tools).
    – Kalnode
    Jun 22, 2022 at 20:05
  • @MarsAndBack - for some reason xournal worked for me too some time later. I think it was a different installation, but I can't tell you anything particularly useful on how I got it working. Best of luck
    – ecoologic
    Jun 22, 2022 at 22:02
  • if apt doesn't work, try snap or maybe from the website?
    – ecoologic
    Jun 22, 2022 at 22:05
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    Works really well. This is also a way to edit the text or even adjust line spaces. I was asked to remove line space before for a PDF book. Using LibreOffice Draw seems to be a better way.
    – Harry
    Oct 20, 2023 at 22:52
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I made a tool for this: https://github.com/svenssonaxel/pdf-sign

Unlike Xournal++ and LibreOffice Draw, it will keep the quality of the signature (no rasterization), and IMO is faster too since it's specifically made for this use case.

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  • This is great ! Thank you for this great software :)
    – brunetton
    Mar 21 at 17:45
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I did like this:

  1. Create my signature with signaturely and download image as png.

  2. Install Sejda, a PDF editor for Linux, macOS and Windows, with a graphical user interface. Download deb file from https://www.sejda.com/desktop, then install sejda, like this:

sudo dpkg -i sejda-desktop_7.5.4_amd64.deb
  1. Start sejda and paste the signature image to a pdf.
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I was able to sign a pdf using https://dochub.com/. The service was free and worked great! When I opened the pdf from my google drive, I selected the option to sign using dochub. I uninstalled Adobe from my Linux machine as the signing part never worked right from Snap.

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