Protect PDF
Add a password a PDF will not open without, with AES-256 encryption. It runs in your browser, so neither the file nor the password ever leaves your device.
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Lock a PDF with a password
- A contract or rate card sent by email.
- Payslips and invoices with bank details.
- A pitch deck shared before it is announced.
There is no recovery: if the password is lost, so is the document. Print and copy restrictions are honoured by most readers, but they are a request, not encryption.
Your file never leaves your device
Protect PDF runs in your browser. The file is read, changed and saved on your own computer or phone; it is never uploaded to Wiro or anyone else, so a contract, an invoice or an ID is safe to use here. Free, with no sign-up, no watermark and no daily limit.
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Try it freeCommon questions
Are my files uploaded?
No. Every tool runs in your browser: the file is read, changed and saved on your own device, and nothing is sent to Wiro or anyone else. That is why a contract, an invoice or an ID is safe to use here.
Is it really free?
Yes, with no sign-up, no watermark and no daily limit. Your own device does the work, so there is no server cost to pass on.
Does it work on a phone?
Yes, in any modern browser. Very large files are slower on a phone, because the phone does the work; on a computer the same file is usually quick.
Can it open password-protected PDFs?
If you know the password, yes: Unlock PDF takes it off, in your browser, and every other tool can then work on the file. It does not guess, crack or bypass a password you do not have.