how to open password protected pdf file in android phone

Digital Rights Management (DRM) software and security envelopes can password protect a PDF file from being sent to others as well. Another place where this will come handy is when you have a PDF file that you're selling or making available to your subscribers/followers. If the document contains confidential information, a protected or encrypted PDF can help you protect that secrecy.

Limiting Access: Protecting PDF with a password can also be used to keep unauthorized people from opening and reading the doc. Comparing this digital fingerprint on the PDF with your original would tell you if someone has tried to change the document.

This generates a digital fingerprint on that document. Next, sign the PDF doc digitally with your ID and an encryption certificate. Generating a digital signature is a 2-step process. This comes handy for things like a business contract or other documents that you must not be edited after you've approved the final piece. If your PDF isn't password protected, user may change the incorporated forms, be it accidentally or purposely.ĭigital Signatures: Attaching a digital signature to your PDF doesn't only lock it from edits, it specifies that you yourself have password protected the file. Another thing where content integrity is crucial is if you've embedded forms in the file for the users to fill. If you've left comments on a doc, or approved a precise edition of a doc prior to exporting it as a PDF, password-protecting the PDF from editing can keep people from making changes. Part 1: Three Main Reasons for Protectinging PDF FileĬontent Integrity: Locking a PDF can protect the integrity of your document. Part 3: Open Protected PDF without Password

How to open password protected pdf file in android phone