Lock a PDF with a password

Add a password before you send a PDF. The next person needs that password to open it.

Choose a password of 4 to 64 characters and keep it. DeskConvert does not store the password or the file. A PDF that is already locked cannot be locked again here.

How to convert

1. Open Lock PDF.
2. Type a password of at least 4 characters.
3. Upload the PDF and download the locked file.

Open the free converter

Questions

Can I open it later without the password?

No. Save the password somewhere you can find it.

Do you keep my password?

No. It is used once to lock the file, then forgotten with the upload.

Is this free?

Yes. There is no account and no charge.

More tools are on the DeskConvert homepage. Other guides: Convert PDF to JPG, Convert PDF to PNG, Convert JPG to PDF, Convert PNG to PDF, Merge PDF files, Split a PDF, Compress a PDF, Compress an image, Convert HEIC to JPG, Rotate a PDF, Convert PDF to Word, Convert Word to PDF, Convert PDF to Excel, Add page numbers to a PDF, Reorder PDF pages, Resize an image to an exact size, Make a passport size photo, Unlock a PDF you can already open, Add a signature to a PDF, Crop a photo, Remove pages from a PDF, Add a watermark to a PDF, Turn a scanned PDF into Word, Read the text in a photo, Resize a photo, Rotate a photo, Add a line of text to a PDF.