How to remove a password from a PDF
Last updated: 1 November 2026
To remove a password from a PDF, open Unlock PDF, select the file, type the password when asked and download the unlocked copy. The copy opens without a password and can be printed, copied and edited. PDF4U does not crack or guess passwords. If the file asks for a password when you open it, you need to know that password.
This guide is for anyone tired of typing a password every time they open a bank statement, a phone bill, a payslip or a scanned contract. It also helps if a PDF opens normally but won't let you print or copy text. Those restrictions are removed without a password.
Everything runs in your own browser, so your document and your password stay on your device.
Step by step
- Open the unlock tool. Go to Unlock PDF in the browser on your computer or phone. You don't need an account or sign-up.
- Select the PDF. Click “Select PDF file” or drop the protected PDF onto the page.
- Start unlocking. Click “Unlock PDF”.
- Enter the password. Type the password when asked. If the file only has restrictions on printing, copying or editing, you won't be asked for one.
- Download the unlocked copy. Click “Download” to save the unlocked copy. It opens without a password and can be printed, copied and edited.
- Keep the original. Store the original protected file as well. You may need it to prove that a statement wasn't changed.
What unlocking removes and what stays the same
A PDF can carry two kinds of protection. An open password stops the file from opening at all. Restrictions let the file open but block printing, copying or editing. Unlocking removes both, as long as you supply the open password where one exists.
The content is not touched. Pages, text, images, links and form fields stay exactly as they were. The tool supports all standard PDF password encryption:
- 40-bit and 128-bit RC4
- AES-128
- AES-256
These are the types used by Acrobat, Word, banks and scanners.
Why remove the password before merging or compressing
Banks, phone companies and payroll services often send statements as password-protected PDFs, with a password based on your date of birth or customer number. A protected file gets in the way when you want to combine several statements into one document, make a file smaller for email, or print it.
Once you have removed the password from a copy, that copy works with every PDF4U tool. You can merge it with other files, compress it or print it without typing the password again.
Common problems
The file asks for a password and you don't know it
PDF4U cannot help you open it. The tool does not crack or guess passwords. Ask the person or company that sent the file for the password. For statements, check how the sender says the password is formed, for example from your date of birth or customer number.
You forgot a password you set yourself
Nobody can recover it, and that is what makes the protection strong. In future, store passwords in a password manager or keep an unprotected copy somewhere safe.
A very large file won't process
There are no daily limits, but the file is processed on your device, so very large files depend on your device's memory. Close other tabs or try on a computer instead of a phone.
You need protection again after editing
Use Protect PDF to encrypt the finished PDF with a new password. It uses AES-256 encryption. Send the password separately from the file, for example by phone.
Only unlock files you may use
Unlock only files that you own or are allowed to use. Examples are your own bank statements and payslips, or documents someone shared with you together with the password. Removing protection from a file you have no right to use is not what this tool is for.
Tools used in this guide
Frequently asked questions
Can I unlock a PDF without knowing the password?
Only if the PDF opens without a password but blocks printing, copying or editing. Those restrictions are removed automatically. If the file asks for a password when you open it, you need that password, because PDF4U does not crack passwords.
Is it safe to type my password into the page?
Yes. The password and the file are processed by your browser on your own device and are never uploaded or stored. The page cannot send files to any other site. See the privacy page for details.
Does unlocking change the content of my PDF?
No. Pages, text, images, links and form fields stay the same. Only the encryption and the restrictions are removed.
Which kinds of PDF protection are supported?
All standard PDF password encryption: 40-bit and 128-bit RC4, AES-128 and AES-256, as used by Acrobat, Word, banks and scanners.
Can I remove a PDF password on my phone?
Yes. Open Unlock PDF in your phone's browser, select the PDF, enter the password and download the unlocked copy. Nothing is uploaded.
How do I put a password back on the file later?
Use Protect PDF. Type a new password and repeat it, click “Protect PDF”, then click “Download”. The file is encrypted with AES-256 on your device.
Your files are processed in your browser and are not uploaded. See the privacy policy.