The PDF format is not only popular because it is compatible with any system, you can also protect these files. With PDF Unshare, only users with the correct password can view the content. In addition, you can protect PDF files in various ways against editing, copying and even taking screenshots.
PDF Unshare
price
Free
Language
English
OS
Windows (PDF Unshare), Windows, iOS, Android (UPDF Reader)
Website
https://pdfunshare.com
8 Score 80 
- Pros
- Incredibly simple
- Combination of security settings
- Negatives
- Updf not supported by macOS
PDF Unshare is a free program for Windows. During installation you can choose between different language settings, but Dutch is not an option. This application introduces a new PDF format: updf. Updf files can only be opened and viewed with the updf reader, which can be downloaded from the same website. Since updf files require you to use a specific reader, this works as an extra layer of security. In addition, you can also save the document as a standard protected PDF file. This keeps the document compatible with standard PDF readers such as Foxit PDF Reader and Acrobat Reader.
Expiration date or reading restriction
There are two ways to protect PDF files. The first is protection against unauthorized sharing. In that case, you create a secure updf or pdf and the recipient has a password to view the file. There is an option to make the document open only on one device, which can be a desktop PC, notebook or one of the mobile devices. The computer on which the file was created is not included in that device restriction.
The second way is to provide the updf / pdf document with an expiration date. Then everyone can view the file until a certain date.
No screenshots
As the owner of the file, you can prohibit the file from being copied, printed and edited. You can also set that no screenshots of the document may be taken. And to avoid someone taking photos of the content with their smartphone, you can also place a watermark over the text.
Conclusion
All in all, PDF Unshare is a very user-friendly solution to prevent others from taking your work. If you don’t have the updf reader yet, the protected document will direct you to the download page link. Just a pity that this format is not supported by macOS.
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