Secure PDF

Activities ::: mod_securepdf
Maintained by Yedidia Klein
Share your PDF to students without letting them to download or save it.
Latest release:
622 sites
30 fans
Current versions available: 1

Secure PDF

  • Secure PDF module allow you to upload a PDF to your course, and prevent students from downloading it.
  • Students will get an image of each page and not the PDF itself.
  • The images are protected from "right click" to prevent saving the image.
  • Module completion will be set only while user saw all pages of document.
  • You must know that people with web development skills will be able to download the images (one by one)



  • Add securepdf module in your course.
  • Add a PDF fle to the module and watch it.
  • Note that first view of page will be slow (20-25 seconds), then it's will cached for other users.
  • Enjoy!


Screenshot #0


Yedidia Klein (Lead maintainer)
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  • Paul Staley
    Tue, May 25, 2021, 1:39 AM
    I love using this plugin so I don't have to convert the PDF to an image to put into a lesson. The plugin is just really slow when viewing PDFs.
  • Sreenivasula Reddy Dorshala
    Mon, May 31, 2021, 5:50 PM
    if we add pdf of more than 100 pages (of size > 30mb) then it is taking too much of time to load, can we have any option to improve the performance.
  • Yedidia Klein
    Sun, Jun 13, 2021, 5:52 PM
    The performance issues are just on the first view, after that it should be cached.
    I'll check big files.
  • Yedidia Klein
    Fri, Jul 16, 2021, 5:17 PM
    Performance is now much better (on version 0.99), cache is automatically created via adhoc task on module creation, module update and first view after cache purge.
  • Dr. Nellie Deutsch
    Fri, Jul 30, 2021, 11:59 AM
    Thank you for creating an amazing plugin for Moodle, Yedidia. The only things colleagues would like is the "search" feature available on a PDF file.
  • Vinay Prithiani
    Wed, Oct 6, 2021, 6:30 PM
    Thank you for this plugin. Is there a way to control the size of the window in which the pdf is displayed? It is quite large now for our screen and requires using a scroll bar.
  • sara rad
    Thu, Feb 17, 2022, 11:26 PM
    I have installed the plugin and upload a 36 MB file. Right now my host space is full. How I can delete the uploaded file?
  • Anthony Lee
    Thu, Nov 3, 2022, 12:58 AM
    Thank you for writing this plugin! Is it possible to add a "stamp" to each page with the student's name and email address to discourage screenshotting and sharing with others?
  • Balya Rochmadi
    Sun, Jan 8, 2023, 10:38 PM
    hey @Yedidia Klein your plugin require constant restart of the server, after file upload to work even though my imagick policy has been set to read, can you fix that?
  • Yedidia Klein
    Tue, Apr 11, 2023, 1:55 AM
    @Anthony Lee, Added an option in settings to add username and site name on each image.
  • Anthony Lee
    Tue, Apr 11, 2023, 12:28 PM
    Thank you!
  • John Christoffer Mutya
    Tue, Apr 18, 2023, 3:12 PM
    We have successfully installed this plugin but there were problems on the PDF some parts of the pdf is missing. What seems to be the problem? Thanks in advance.
  • Paul
    Mon, Jun 5, 2023, 2:36 AM
    Will this be made 4.2 ready?
  • Hossein Hamam
    Thu, Oct 5, 2023, 6:20 PM
    What are the limits for the PDF to be secured properly? I have to reduce the resolution to 30 for a full pdf to be printed, otherwise on a 150 resolution only few pages of it get secured and available to the students.
  • Kiss Tamás
    Mon, Dec 11, 2023, 8:29 AM
    Why does the plugin only display the first 20 pages of my documents? Is this a Moodle specific limitation in my system?
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