PDF Files Watermarking

Get an invisible digital watermark embedded in your PDF document as its globally unique identifier and copyright protection tool
PDF Files Watermarking - Get an invisible digital watermark embedded in your PDF document as its globally unique identifier and copyright protection tool
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  I accept the Terms Of Use
* If you don't have an account yet, please register HERE for free
  Submit for Watermarking
  Submit for Recognition
* Select "Submit for Watermarking" if you have a new PDF file to watermark, or select "Submit for Recognition" if you have a PDF file to determine if a watermark is embedded in it
  I want to send a free demo
  I only want to update the description
* The file title will not be publicly available. The file description (e.g. author's name, bio, copyright notice, social media links etc.) will be publicly available.
* Free watermarked demos will be removed from the database 24 hours after submission. It is one file only available for a free demo submission.
UPLOADING
* PDF files that you stamp by using our watermarking tool are available for further distribution to all digital platforms, PDF books and eBooks stores and online marketplaces.
PDF FILE WATERMARKING, IN A NUTSHELL
PDF file watermarking is a process of establishing a direct connection between the users of a work in digital PDF file format and the copyright owner(s) of that work. The watermark data is physically embedded in the PDF file forming an integral part of the whole. Being solid enough not to be affected by normal changes to the file, the digital watermark is unobtrusive and invisible to the naked eye. The existence of the bits representing the digital fingerprint can only be confirmed by the use of complex mathematical calculations.
Digital watermarks play a double role. On the one hand, they help us determine the authenticity of digital files being sold, bought, read or reviewed. On the other hand, digital watermarks provide copyright protection for intellectual property in a digital world and give users access to publicly available information about the copyrighted work (detailed description, copyright notice, social media links...). This metadata is entered by the copyright holder himself or another individual or legal entity authorized by the author of the work.
TEST BEFORE USE
You may wish to test the watermarking tool before you start submitting regular PDF files. If this is the case, please tick the "I WANT TO SEND A FREE DEMO" box. You can upload one free demo only and its availability has a time limit of 24 hours. There is no time limit or any other limits set on regular PDF submissions.
For more information, please visit our Frequently Asked Questions page. Please also visit our step-by-step guide on how to add a watermark to your image, audio, video, animated GIF or PDF file.
CERTIFICATE OF OWNERSHIP AND DIGITAL SIGNATURE
It is very important that some kind of public verification process for the PDF files you have with us is enabled. Each PDF that you watermark is therefore accompanied by a certificate of ownership containing a cryptographic digital signature to ensure data integrity. Signing the data with a digital signature allows anyone to verify the identity/authentication of the copyright owner of the stamped file.
Other than having the original watermarked PDF file itself, you must also have the following information to verify one's digital signature:
  • The public key used to sign the data (available HERE)
  • The digital signature (it is different for every file and is available on the certificate of ownership's cover)
  • The hash algorithm used for data signing is MD5
Finally, in order to check whether one's certificate of ownership is valid or not, please visit THIS PAGE.
SIGN UP FOR USING THE FINGERPRINTING TOOL
The licensor of the web tool for watermarking PDF files requires paying a fee to grant a license under intellectual property laws to authorize a use to its licensee. Registration is required.
Verifying one's digital signature or certificate of ownership is free to use. No registration is required.
If any questions, feel free to send us a message.
DIGITAL FILE WATERMARKING AND COPYRIGHT PROTECTION TOOL
// Get an unobtrusive, invisible and noiseless digital watermark embedded in your file as its globally unique identifier and copyright protection tool //
VIDEO ENCODING
// Submit a video and convert it to grayscale or black and white video, create an animated GIF image online, trim a video file, extract audio from video, extract video only, extract images, add watermark to video, or create a thumbnail //
FIND THE SIMILARITY BETWEEN IMAGES, AUDIO AND VIDEO FILES
// Compare two files online by measuring the similarity and computing the normalized cross-correlation //
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