Category Hub
PDF Tools for Protection and Privacy
Lock, unlock, sign and clean up PDFs, and create strong passwords to protect them. The PDF tools give you a new copy, so your original file stays as it was.
Protect PDF
Lock a PDF with a password using AES-256 encryption. Optionally stop printing, copying or editing. Your text stays searchable, and PilotPDF doesn't keep a copy.
Unlock PDF
Remove the password from a PDF you're allowed to open, or lift its printing and copying limits. Your text, links and forms stay exactly as they were.
Remove PDF Metadata
Remove PDF properties including Title, Author, Keywords, Creator, creation dates and XMP metadata. Page content stays as it is.
Password Generator
Generate random passwords online. Choose the length and character groups, then copy the result when it meets your needs.
Sign PDF
Sign a PDF online. Draw, type or upload your signature, click where it goes on any page, add the date, and download. Free, with no account.
Pick the right tool for the job
Protect PDF adds a password with AES-256 encryption, and can also stop printing, copying or editing in apps that respect those settings. The text stays searchable, because the pages are encrypted as they are rather than turned into pictures.
Unlock PDF removes a password you already know, or lifts the printing and copying limits from a file that opens without one. It does not guess or crack passwords.
Sign PDF places a drawn, typed or uploaded signature on any page, with the date or your printed name beside it. Remove PDF Metadata deletes the title, author, dates and other hidden properties a file carries, which is worth doing before a document leaves your organisation.
Password Generator makes random passwords of the length and character mix you choose. Use one when you protect a PDF, and keep it in a password manager.
Know what each one can and cannot do
An open password keeps people out of the file. Printing and copying limits are only a request, and some apps ignore them, so rely on the open password for anything confidential. Send that password separately from the file, by text message or a phone call.
A signature added with Sign PDF is a picture of your signature on the page. That is accepted for many everyday agreements, but some contracts need a certificate-based digital signature, so check what the other side requires.
Removing metadata does not touch anything shown on the pages. To hide names or numbers that are visible in the document, use Redact PDF before you share it.
Explore more categories
Open related category pages to browse more tools for PDFs, images, generators, and security tasks.
PDF Tools
Browse PDF tools for merging, splitting, compressing, converting, signing, protecting, and editing files.
Image Tools
Browse image tools for resizing, cropping, compressing, converting, watermarking, and metadata cleanup.
Generator Tools
Free generators for QR codes, barcodes, invoices, certificates and ID cards. Fill in the details, check the preview and download a file ready to print or share.