# Opening of encrypted PDF - license comprasion

**URL:** <https://pdfjs.community/t/opening-of-encrypted-pdf-license-comprasion/1900>\
**Category:** Technical Support\
**Created:** [July 25, 2022, 9:05am UTC](https://pdfjs.community/t/opening-of-encrypted-pdf-license-comprasion/1900 "2022-07-25T09:05:21Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![user45](https://avatars.discourse-cdn.com/v4/letter/u/7ab992/32.png) [@user45](https://pdfjs.community/u/user45)\
**Post date:** [July 25, 2022, 9:05am UTC](https://pdfjs.community/t/opening-of-encrypted-pdf-license-comprasion/1900/1 "2022-07-25T09:05:21Z")

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I can see that we can open password protected pdf with pdf.js express viewer.  
[https://pdfjs.community/t/how-can-i-open-password-protected-pdf-file/396](https://pdfjs.community/t/how-can-i-open-password-protected-pdf-file/396)

but when I compare PDF.JS EXPRESS VIEWER vs PLUS  
[https://pdfjs.express/pricing](https://pdfjs.express/pricing)  
I can see that `Support for 128 bit AES (Advanced Encryption Standard) encryption` include only pdftron.

Then what are the differences with open enrypted pdf?  
Can I do that on viewer and plus version?

and the second one related to licenses: can we select and export annotations area in both versions (viewer and plus)?

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_[View the full topic](https://pdfjs.community/t/opening-of-encrypted-pdf-license-comprasion/1900)._