How to use Password Protection online
Add strong encryption before sharing PDFs that contain private or sensitive information.
Upload your PDF
Drop your PDF into the upload area above or click to browse.
Configure settings
Enter and confirm a strong password that the recipient will use to open the PDF.
Download your result
Encrypt the document with AES-256 and download the protected PDF.
Frequently asked questions
What encryption is used for password-protected PDFs?
PDFly creates an AES-256 encrypted PDF and validates the protected result before download.
What is pay-per-use pricing?
You only pay for completed operations. The fee is deducted from your wallet when your result is ready to download.
Do I need an account to use this tool?
You can choose a file and configure the tool first. Sign in is required to process and download the result.
How secure are my documents?
Files use private object storage and signed access. Uploaded sources are scheduled for deletion when processing finishes, abandoned uploads expire within 24 hours, and generated results remain available in My files for 7 days.
What file size limits apply?
Each file can be up to 100 MB. Multi-file tools accept up to 50 sources and 200 MB combined.