When You Should and Should Not Remove a PDF Password
A password-protected PDF serves a purpose. It prevents unauthorized people from opening the document or restricts what they can do with it after opening. Removing the password from a PDF is appropriate when you are the authorized document owner, you know the password, and you no longer need the protection. Perhaps the document was password-protected for a specific email transfer and now needs to be stored in a shared folder where the password would prevent colleagues from accessing it. Perhaps you created the document with a password and have decided the content does not actually need protection.
Removing a password from a PDF you can already open is a straightforward operation available in most PDF editing tools.
Storing the password in a password manager when you first receive the document prevents future access problems.
Removing a password from a PDF that you do not own or that you do not have authorization to access is a different matter entirely. Password protection exists to enforce the document owner's access control decisions. Circumventing it without authorization may violate the owner's rights, your organization's acceptable use policies, or applicable laws. The instructions in this article assume you have legitimate access, meaning you know the current password and have the right to modify the document's security settings.
The Unlock PDF process described here removes password protection from a document you can already open. If you have a PDF that you cannot open because you do not have the password, password removal is not the appropriate approach. Contact the document owner or sender and request the password. If the password has been forgotten, some PDF tools offer password recovery features that attempt to find the password through various methods, but these are recovery tools, not removal tools. They try to discover what the password is, not bypass the protection without it.
Removing the Open Password From a PDF on Windows and Mac
On Windows, open the password-protected PDF in a PDF editor that supports security modification. Enter the password when prompted to open the document. Go to the File menu, select Properties or Document Properties, and find the Security tab. The Security tab shows the current security settings including whether an open password or permissions password is set. Look for a Change Settings, Remove Security, or similar option. Select it, and when prompted to set a new password, leave the password fields blank. Save the document. The password protection is removed, and the PDF opens without prompting for a password from that point forward.
On Mac, the built-in Preview application cannot remove PDF passwords, but several free Mac PDF tools can. PDF Expert and PDFpen both support security removal for documents you have the password to open. Open the PDF in the tool, enter the password, and look for a security or document permissions option in the File menu or document settings. Select the option to remove security and save the document.
WukongPDF's PDF Password removal tool works in any browser on any operating system. Upload the password-protected PDF, enter the current password when prompted, and the tool produces a password-free version for download. The browser-based approach eliminates the need to install or update PDF software specifically for password removal.
After removing the password, verify that the operation was successful by closing and reopening the PDF. It should open directly without prompting for a password. If it still prompts, the password removal did not take effect and needs to be attempted again, possibly with a different tool or with verification that the correct password was entered during the removal process.
Removing Editing and Printing Restrictions While Keeping the Document Open
Some PDFs have two separate passwords: an open password that controls access to the document and a permissions password that controls what can be done with it. A document that opens without a password but restricts printing, copying, or editing has only a permissions password set. Removing these restrictions requires the permissions password, which may be different from any open password.
The process for removing permissions restrictions is similar to removing an open password. Open the document in a PDF editor, go to the Security settings, and select the option to change or remove security. When prompted for the current password, enter the permissions password, not the open password. If you do not have the permissions password, you cannot legitimately remove the restrictions through the document's security settings.
Some PDF Security tools can remove permissions restrictions without the permissions password by processing the document through a re-export or re-creation path that produces a new PDF without the restrictions of the original. This approach does not crack the password or bypass the encryption. It creates a new document from the rendered content of the original, similar to printing the document to a new PDF. The new document is not restricted, but any features that depend on the original document's internal structure, such as form fields, digital signatures, and embedded metadata, may not survive the re-creation process.
What to Do After Removing the Password
After removing password protection, consider whether the document needs any security at all in its new context. The password served a purpose when the document was created. If that purpose no longer applies, an unprotected PDF is appropriate. If the document still contains sensitive information but needs to be accessible without a password in a specific location, consider securing the location rather than the file. A shared folder with access limited to authorized users provides document-level security without per-file passwords.
Rename the unprotected version of the PDF to distinguish it from the password-protected original. Appending -Unprotected or -NoPassword to the filename makes it clear which version is which and prevents the confusion of having two files with the same name but different security properties. Store the password-protected original in a separate location and use the unprotected version for day-to-day access.
For documents that will be distributed after password removal, verify that the removal was complete by testing the file on a different device or in a different PDF viewer. A PDF that opens without prompting on the computer where the password was removed may still prompt on a different computer if the removal was not fully applied. Testing on a second device catches incomplete password removal before the document is distributed to recipients who would be blocked by the remaining protection.
WukongPDF's PDF Security tools include password management features that handle both adding and removing protection from PDFs. The removal process preserves document quality and content while eliminating the password prompt, producing a standard PDF that opens normally in any viewer.
For organizations that manage large collections of password-protected PDFs, maintaining a secure record of all document passwords is as important as the documents themselves. A password manager designed for team use can store PDF passwords alongside the document locations, with access controls that restrict who can retrieve passwords. When a team member leaves the organization, their access to the password manager is revoked, but the passwords remain accessible to authorized team members who need to open or modify the protected documents.
The file size of a PDF may decrease slightly after password removal because the encryption overhead is eliminated. The encryption that protects the document adds a small amount of data to the file header and wraps the document content in an encrypted container. Removing the protection strips this encryption layer, which can reduce the file size by a few kilobytes to a few hundred kilobytes depending on the encryption method used. This size reduction is usually negligible but is a normal result of the password removal process, not an indication that document content was lost or altered.
After removing password protection, test the document thoroughly before distributing it. Open it on a different device or in a different PDF viewer. Verify that all pages display correctly. Confirm that the document can be printed. Check that text can be selected and copied if those operations were previously restricted. A document that passes all these tests on a second device is confirmed to be fully unprotected and ready for normal use by anyone who receives it.
If you regularly receive password-protected PDFs from the same sender, such as monthly bank statements or recurring client reports, ask the sender if they can provide an unprotected version for your records after the initial secure delivery is confirmed. Many organizations apply password protection as a default for all outgoing PDFs but are willing to accommodate recipients who prefer unprotected documents for their internal use. This conversation often eliminates the recurring need to remove passwords from documents that do not require ongoing protection.
The simplest way to ensure you never lose access to a password-protected PDF is to store the password immediately upon receiving or creating the document, before you need to open it a second time. Password managers make this effortless by offering to save passwords when you enter them. If you receive a password-protected PDF and enter the password in your PDF reader, take the extra moment to save that password in your password manager. Months later, when you need to open the document again or remove the protection, the password is exactly where you expect it to be.