WordPress PDF Stamper Plugin is specially developed for WordPress Download Manager to protect copyrighted PDF files even after a user downloads them. Using this plugin, you can stamp Your eBooks with Customer Details to Discourage File Sharing. A custom stamp will be applied dynamically before downloading the file. You can configure specific options like stamp text, positions, colors easily from the settings page. If you are selling eBooks, PDF stamper Add-on with WordPress Download Manager & Premium Package Add-on could be a perfect solution for you.
WordPress PDF Stamper Plugin Features:
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Easy to Use
Easy installation, like any other regular plugin, upload and activate, no complicated setup option, just a simple setting page with simple options but covered everything you need

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Protect eBook
Protect your eBook(s) from being shared illegally on file-sharing sites.
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Encrypt PDF Files
Encrypt the stamped PDF files to prevent users from being able to copy, modify or print the content of the file.
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Stamp eBooks
Stamp the customer’s details to the header or footer of every eBook (PDF file) that you sell.
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Watermark Image
As well as text you also can add an image watermark to your PDF file with the specified transparency level.
Documentation
Changelog:
- Fix! Fixed an undefined variable warning when stamper option was not configured properly
- Fix! Fixed an undefined variable warning when stamper option was not configured properly
- New! Improved admin options
- New! Updated auto-update routine
- New! Total re-code with new option sets
- Fix! Fixed a conflict with wpdm pro multi-file download
- Update! Compatibility update for WordPress Download Manager Pro 6.0
- Update! Compatibility update for WordPress Download Manager Pro 5.3
- New! Added option to skip stamp from first/cover page
- New! Added global and package specific option to enable/disable stamping
- Fix! Download Manager v.5 compatibility release
- Fix! Fixed the Order tag issue in Premium Packages
- Fix! Fixed compatibility issue with latest version of WPDM
- Fix! Fixed compatibility issue with PHP 7.1.*
- New! Protect your PDFs using open and owner password
- Fix! Fixed an issue with guest download
- Fix! Fixed an issue with {fullname} tag
- Fix! Fixed a compatibility issue with the premium package add-on
- Fix! Fixed an issue related to stamped message font
- Fix! Removed a deprecated WordPress function
- Fix! Fixed escape slash issue
- New! Added transparency option for image stamp
- Fix! Fixed issue package download
- New! Added new stamp tag
- New! Added support for template tags
richardwing
Does the store owner get access to set up how their products would get stamped?
Shaon
Only marketplace owners, the message is mostly generic.
tbarto002
Hi Shaon – Recommendation – Consider adding this to the next update of the PDF plugin. It would be very useful to anyone who needs to watermark the document with a time/datestamp in the event they are not “purchasing” the PDF, but just downloading it and want it to be marked with the download date.
$arr[‘{today}’] = ”;
$arr[‘{today}’] = $blogtime = current_time( ‘mysql’ );
—————————————————
{today} – The date of the PDF download- free
Thanks
services
Could you provide a sample image of a stamped document please?
Shahriar
Demo: https://demo.wpdownloadmanager.com/addons/download/pdf-stamping/
autozak
Questions >
1) Can this plugin stamp if the file is delivered from Dropbox or Amazon?
2) Can I use a 3d party product to restrict access to the page on which the download link appears?
3) Are you using liquid templating for the PDF stamper?
Shahriar
1) Sorry, stamping will not work with remote files, as files need to be stored in the same server to customize it.
2) You won’t need to use 3rd part plugin, wpdm pro has roles based and other kinds of protections you need to apply
3) No
autozak
Also, is there a way to try all the features of this plug-in out first before purchase? Not all the features are available on your demo website. Also, your Dropbox and Amazon links don’t work on your demo website (admin area). Thanks.
Shahriar
You can check demo from here https://demo.wpdownloadmanager.com/addons/download/pdf-stamping/
piersmcleish
I came across this plugin as a result of needing this functionality to add to my site built on Easy Digital Downloads. Is this still compatible with EDD?
Shahriar
Sorry, it will not work with your plugin, this plugin is for WordPress Download Manager and Premium Package ( https://www.wpdownloadmanager.com/download/premium-package-wordpress-digital-store-solution/ )
Filip Pusca
Hi, have some questions before buy this add-on.
1st. Does it work with free version of download manager?
2nd. Where are the security settings to encrypt the PDF files?
3rd. Is the download-manager-files folder secure to store files?
4th. Is it possible to add opacity to text watermark in the plugin codes?
Shaon
#1. Yes.
#2. All you need to do with setup explained above in the description.
#3. Yes, they are protected
#4. You can set “Watermark Transparency” level for image based stamp
ozone
Hello,
in your demo (https://www.wpdownloadmanager.com/wordpress-download-manager-pro-demo/) I can’t find any option to enable pdf protections or encryption.
I downloaded the file from https://demo.wpdownloadmanager.com/addons/download/pdf-stamping/ and I was able to print and edit the file, so the file protection or encryption is not automatic.
Can I have more informations about this?
Thank you, best regards
Shaon
It requires to enable encryption from package settings:

ozone
Ok, I see.
So is a per-package setting, not a global one.
Thank you!
services
Hi
Just updated to the lates version expecting to get stamping for zip files as promised months ago. BUT, it still doesn’t do it!
Is it ever gonna happen?
Thanks
arun89
Hello Sir,
I have a questions before buy this plugin.
Does it work to prevent distribution among users after purchase a ebook. Please reply ASAP.
Regards,
Arun
Filip Pusca
Good day, i am thinking to update my PHP version to 7 and i run a plugin checker to see the compatibility of installed plugins.
So it detected this WPDM – PDF Stamper – Warnings: 1 Errors: 2
Is it safe to update does it will still work normal?
Shaon
Please post the php7 errors in forum http://www.wpdownloadmanager.com/support/forum/download-manager-pro/ , we shall check and let you know.
Chelsea Schonhaut
In the documentation it says it “is specially developed for WordPress Download Manager” — is this a plugin, or just the generic WordPress download management tool?
I’m wondering if this plugin would be compatible with the “PDF Viewer for WordPress” plugin
If it isn’t compatible – do you know of any PDF viewers/managers that *would* be compatible with this plugin?
Thanks
Shahriar
PDF Stamper is an add-on for WordPress Download Manager Pro. We have a PDF viewer add-on too https://www.wpdownloadmanager.com/download/wordpress-pdf-viewer/ which works with PDF Stamper.
Mirko
Hello,
does it requires Woocommerce or a buy process or does it simply apply watermark to .pdfs downloads created with Download Manager with users account details?
Thank you
Shahjada
None of the items at http://www.wpdownloadmanager.com have any dependency on Woocommerce. PDF Stamper is also developed specially for download manager files. Yes, It will apply a watermark to .pdfs downloads created with Download Manager and you can control the watermark text from settings page..
Brian Grinter
Have purchase this add-on and it generally works well, however I notice it does not work with packages that contain multiple files as a zip. Is this possible?
Regards
Brian
Shahjada
PDF stamper will work for only individual PDF attachment, not for zipped PDF files. When you have multiple pdf files with a package, and needs to be stamped, please use only [file_list] tag with thw page template, and skip [download_link] tag.
Erick
Purchased the PDF Stamper and uploaded the zip file via the plugin add- then activated the plugin. Now, I cannot see the the plugin in my WordPress dashboard. I can find it under plugins but there are no additional setting links, etc associated with it.
Any ideas?
Shahriar
Have your installed the Download Manager? PDF Stamper is an add-on of Download Manager.
Erick
Ah, got it. Thanks!
Also, how do I get the watermark to show on my PDF document? Everything is installed and seems to be working properly from what I can see.
Juan Jesús Pavón
Hi,
is compatible the last version with php 7.3.21?
Thanks
Trágora SCA ESF18763177
Hi! When I stamp the PDF the links do not work. Any way to solve it?
Shahjada
Please update to the latest version.
Rafael Aguiar
Hi, is it compatible with php 8?
Rafael Aguiar
Hello, please insert compatibility with php 8.0
Shahjada
It is now.
Sowmedia
Is it possible to add a new font for the PDF Stamper?
Sindy Lallemand
I have just taken out the full subscription of the extensions that you offer but I cannot find the file to activate this extension, what is its name? THANKS
Shahjada
wpdm-pdf-stamper.zip
Sindy Lallemand
the zip folder is empty?!?
Shahjada
Sorry for your inconvenience., it is fixed now, please download again.
PGtm
hello i try to install wpdm pdf stamper using download manager plugin it say success but not plugin install plugin on my website can you please help
Shahriar
Please download the addon from here https://www.wpdownloadmanager.com/user-dashboard/?udb_page=purchases and the install it from Plugins > Add New page.
PGtm
there is no wp pdft stamper on the given link
Shahjada
Hi,
Your order is linked to an account with email `contact@pas…..sat.com`, please go to https://www.wpdownloadmanager.com/user-dashboard/?udb_page=purchases and login using that account info.
PGtm
the only download file on the given linked is download manager pro v6.5 and i don’t see any pdf stamper plugin here
Shahjada
Please post in forum:
https://www.wpdownloadmanager.com/support/forum/download-manager-pro/
I can point you properly from there.
PGtm
i create one please check https://www.wpdownloadmanager.com/support/topic/cant-able-to-download-wp-pdf-stamper-plugin/
shmuel makovetzki
can I change/add more font to support more languages? in my language I got “?????” instead of text watermask
Shahjada
Please post in support forum https://www.wpdownloadmanager.com/support/forum/download-manager-pro/
Daniel PK
Hello, pre-purchase question:
Can i custom design the stamp? my company has rounded stamps with company logo, and manual customer details inputted into it. Can i use this plugin to create custom stamps based on customer info such as name, email, …etc?
Cheers
Shahjada
If you use text stamp option, you can dynamically stamp customer details in text format, how for there is also an option to stamp a pre-designed image. However, to create the stamp image dynamically, there will require additional customization.