Remove password protection from any PDF file instantly. Enter the owner or user password once and download a fully unlocked, unrestricted PDF. Free, no signup.
Select a password-protected PDF
Drag & drop your PDF here, or click to browse
PDF files only · Up to 100 MB
How it works
No software to install. Works on any device with a modern browser.
Click "Select PDF file" or drag and drop. SupaPDF immediately detects whether the file is password-protected and shows the encryption status.
Type the document password. The preview updates live to confirm the password is correct - you'll see the first page of your PDF if it is.
Click "Unlock PDF". Your file is processed in seconds and you can download a copy that opens without any password.
Why SupaPDF
Used by developers and teams worldwide to remove PDF password protection reliably and at scale.
As you type the password, SupaPDF attempts to render the first page in your browser. A successful preview confirms the password before you even submit.
All uploads use encrypted HTTPS. Your password is transmitted securely and your files are permanently deleted from our servers immediately after download.
Password verification and protection removal happens server-side in seconds. All fonts, images, links and bookmarks are preserved at full quality.
Automate PDF unlocking in your own application. Pass the password in a single REST call - no libraries or server setup required.
Developer API
Use unlock_pdf with the document password. The operation returns an error code of WRONG_PASSWORD if the password is incorrect.
curl -X POST https://api.supapdf.com/v1/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "unlock-pdf-job",
"tasks": {
"upload-1": { "operation": "import/upload" },
"unlock-0": {
"operation": "unlock_pdf",
"input": ["upload-1"],
"password": "your-document-password"
},
"export-result": { "operation": "export/url", "input": ["unlock-0"] }
}
}'If the wrong password is supplied, the task fails with code: "WRONG_PASSWORD". Check the failed task's code field to distinguish this from other errors and prompt the user to re-enter their password.
FAQ
Everything you need to know about removing PDF password protection with SupaPDF.
Ready to remove your PDF password?
Free to use · No account required · Instant download