Privacy matters: conversions process instantly. Files processed via our server are deleted post-download. We store zero user data.
OOmniToolbox

PDF tools

Free online PDF tools for everyday documents.

Compress, merge, protect, unlock, convert, highlight, split, and extract PDF files from one privacy-focused workspace. Pick the exact PDF tool you need and finish the file task in the browser.

Popular PDF jobs

The most common PDF searches are compress PDF, merge PDF, protect PDF, unlock PDF, PDF to PNG, and extract images from PDF. OmniToolbox keeps those workflows separate so users can open the exact tool they need without digging through menus.

Built for form uploads

Many government, school, job, finance, and application portals require smaller PDFs or one combined document. The PDF tools focus on practical outputs: smaller size, correct order, password handling, preview, and instant download.

Browser-first processing

Where the browser can safely handle the file, the work stays on the device. Tools that need temporary processing are designed around short retention and clear privacy messaging.

Common questions

Which PDF tool should I use to reduce file size?

Use Compress PDF when a portal rejects a large file or an email attachment is too big. It tries to create a smaller output and avoids returning a larger file.

Can I merge a password-protected PDF?

Yes, if you know the document password. Merge PDF shows a password field for locked files and uses the password during the merge.

Can I add a password after merging PDFs?

Yes. After Merge PDF creates the combined file, choose Add password to open Protect PDF with the merged file already loaded.