PDFAITools
Complete PDF Toolkit β Free, Fast, Private
Merge, split, compress, convert, protect and edit PDFs directly in your browser. Files are processed locally β never uploaded to third-party servers.
30+ PDF Tools
Β· Convert
Β· Edit
Β· Secure
76
Free Tools
PDF Protect
Add a password to your PDF to restrict access.
Use β
PDF Unlock
Remove password protection from a PDF file.
Use β
Redact PDF
Permanently black out sensitive text and images in your PDF.
Use β
PDF to Secure PDF
Add password protection and restrict printing, copying and editing.
Use β
Frequently Asked Questions
Client-side tools (compress, merge, split) process files entirely in your browser β nothing leaves your device. Server-side conversion tools (Word to PDF, PDF to Excel) upload files securely over HTTPS and delete them immediately after processing.
Most tools support files up to 50 MB. For larger files, try compressing the PDF first.
Yes. The PDF Merge tool lets you add and reorder any number of files before merging.