Windows, Mac, Linux: how to sign a pdf document without printing it

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Manuel Moreno Molina
@manuelmorenomolina
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It is easy to sign a pdf document without printing it, directly on a computer, which can be quite practical at a time when more and more important documents are transmitted by email. Obviously, one of the possibilities is to print it and then scan it, but this solution turns out to be impractical to use, and there is a much faster method!

Example of signing PDF via Preview app on macOS

Quickly add signature to PDF is quite easy. There are indeed simple methods for directly entering your signature on the computer's trackpad or via the webcam whether you are on Windows, Linux or on any version of Mac OS X or macOS. Of course, this raises a hare: signatures are not, in themselves, the best of security. They are easy to falsify, especially nowadays.



However, your bank, or a whole number of services, continue to ask you for an old-fashioned signature, for example to validate a contract or an order. And printing a document to then have to scan it or send it by post often seems like a waste of time. The Chrome DocHub app on Windows and Linux, and Preview included in all versions of macOS and Mac OS X, lets you do this in seconds!

How to sign a pdf document on Windows and Linux

On Windows, we will use the Chrome DocHub application, which allows editing, annotating and signing PDFs directly from Google Chrome:

  • Add the app DocHub since Chrome Web Store and click on the icon of the app you just added
  • Log in with your Google account
  • Go to New > Import New Document and import the PDF to sign



  • In the toolbar go to Sign > Create new signature
  • In the window that appears, go to the tab Draw

  • Draw your signature using the trackpad then click Save as Default
  • Then come back to Sign, then select the newly created signature

  • Place it in the appropriate place, and expand it to the right size

  • Click on the three lines at the top right then Download > Download as PDF (lossless) to download your signed PDF

How to sign a pdf document on Mac

On mac, you can of course also use this trick, but it is possible to make it even simpler thanks to Preview:

  • Open your document in Preview
  • The first time, you will need to create a signature: go to Tools > Annotate > Signature > Manage Signatures


  • Either you can draw it with the trackpad (press a key on the keyboard when you're done), or you can use the camera (webcam). In this case, sign on a white sheet and show it to the webcam
  • Preview takes care of the rest, and draws it in vectors
  • Click on Completed
  • To read also: Windows, Mac, Linux, how to share your files easily

You can then return to Tool > Annotate > Signature and select the newly created signature to place it in the document. Save, and voila! The next times you will only have to select it in the blink of an eye to sign any document.


The editorial advises you:

  1. How to create PDF without installing an application?
  2. How to convert a JPG or PNG image to PDF
  3. How to convert PDF file to Word document
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