# I'm need protection print and save PDF file on web

**URL:** <https://pdfjs.community/t/im-need-protection-print-and-save-pdf-file-on-web/60>\
**Category:** Technical Support\
**Created:** [June 9, 2020, 3:39am UTC](https://pdfjs.community/t/im-need-protection-print-and-save-pdf-file-on-web/60 "2020-06-09T03:39:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dev2009](https://avatars.discourse-cdn.com/v4/letter/d/b5ac83/32.png) [@dev2009](https://pdfjs.community/u/dev2009)\
**Post date:** [June 9, 2020, 3:39am UTC](https://pdfjs.community/t/im-need-protection-print-and-save-pdf-file-on-web/60/1 "2020-06-09T03:39:55Z")

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```
 Hi pdfjs Express team , I'm need protection print and save PDF file on web. This software protect or not and can use php language (No use framework) or not. 

 This software need connect internet alway or not. It's can use offline or not.

```

Best Regards,

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**Author:** ![Logan](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/logan/32/13_2.png) [@Logan](https://pdfjs.community/u/Logan)\
**Post date:** [June 10, 2020, 2:13pm UTC](https://pdfjs.community/t/im-need-protection-print-and-save-pdf-file-on-web/60/2 "2020-06-10T14:13:28Z")

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Hey there,

PDF.js Express does not support offline usage as it needs to connect to our authentication server to verify your license key.

Feel free to check out our sister product, [PDFTron WebViewer](https://www.pdftron.com/documentation/web/). It has the exact same API as Express but also supports offline mode.

Thank you!  
Logan