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Run: qpdf --decrypt InputFile.pdf OutputFile.pdf (use " s if the file name has spaces). Do what you like with the OutputFile. If your PDF file is user password protected, change step 4 to qpdf --decrypt --password=yourpassword InputFile OutputFile. This won't work for Adobe Digital Editions and may have issues with digitally-signed files.
To remove a password from PDF file on Mac, the simplest way is using Preview app. First open password protected PDF with Preview app. Then input the password to unlock the file. From the File menu, select Export and choose a location to store the PDF. Make sure the Encrypt option is unchecked.
Nov 28, 2017 · Use the built in pdf reader in Chrome to open the document. When prompted, enter the password. Go to the File menu and select Print, instead of sending it to a printer select destination printer as "Save as PDF". The password should have been removed on the new document. Source: labnol.org.
Dec 21, 2009 · As of version 1.15.0 (which can be downloaded from here), password protection can be removed (assuming the password is available) with: mutool clean -p "myPassword" -D protected.pdf pdfnopassword.pdf. The -D flag is not currently documented, but was added in commit 60b13ad. @Matt.
Jul 8, 2013 · If the PDF is secured with a server-based security policy, only the policy author or a server administrator can change it. In the open PDF, do one of the following: Select Tools > Protection > Encrypt > Remove. In the Security tab of the Document Properties dialog box, choose No Security from the Security Method menu.
May 1, 2012 · qpdf --decrypt encrypted_document.pdf decrypted_document.pdf Notes: The above instructions assume that you are trying to decrypt a PDF with a forgotten Owner Password (i.e. you can open the PDF and view its content but are restricted from making changes, prints, etc. without the password). These types of encrypted PDFs are trivial to decrypt ...
Mar 28, 2014 · I've been given a PDF that is password-protected. I have the document-open password, which is enough to decrypt the contents and allow PDF readers to load the content correctly. Is there a command-line tool that will perform this decryption process (based on the provided password) and write the decrypted PDF to a new file?
Just go the document Word version, click save as, then before select "pdf" under "Save as type:", delete all is in the field "Authors:" and also click on "options" button on this window and deselect in the pop up window the "document properties" and "document structure tags for accessibility". Then click "ok" and "Save".
FOSS-wise, there is PDFCrack, not sure if it does actually remove the security though, it's just a password cracker. I generally turn to some free trial software, A-PDF Restrictions Remover, it's easier to use. It might be a lot harder if it's a recent PDF version though, I think they really increased the security recently.
1. Use pdftk. pdftk input.pdf output output.pdf user_pw PASSWORD. and a simple for-loop in your shell. Share. Improve this answer. answered Aug 20, 2013 at 14:51. vbraun. 361 1 3.
