DOCUMENTS & PDF

PDF Tools

Merge, compress, split, rotate, watermark, and convert PDF files directly in your web browser. 100% private client-side processing with no file size limits or paywalls.

PDF Merge & Combine

Combine multiple PDF documents into a single organized file with drag-and-drop page ordering.

PDF Compressor

Reduce PDF file size while keeping crisp text and images for email and web upload.

Split PDF Pages

Extract specific page ranges or split PDF documents into single-page files.

Rotate PDF Pages

Fix upside-down pages by rotating PDF documents 90, 180, or 270 degrees.

Watermark PDF

Add custom text stamps and confidential watermarks to PDF files client-side.

JPG to PDF Converter

Convert JPG, PNG, and WebP photos into a multi-page PDF document.

PDF to JPG Converter

Render PDF document pages into high-resolution 300 DPI JPG images.

Why Process PDF Documents Client-Side?

Most online PDF editors upload your sensitive tax forms, business contracts, and personal documents to remote cloud servers where they are queued, processed, and stored. OneToolBox executes all PDF operations locally inside your web browser using modern WebAssembly and the pdf-lib engine. Your documents never travel across the internet, ensuring 100% data security and GDPR/HIPAA compliance.

Available PDF Tools

PDF Merge: Combine unlimited PDF documents with instant drag-and-drop page reordering.
PDF Compressor: Reduce PDF size by up to 70% without sacrificing readability.
Split PDF: Extract custom page ranges or break multi-page documents into individual files.
Rotate PDF: Correct orientation of scanned pages with 90°, 180°, and 270° rotation.
Watermark PDF: Apply custom text stamps (Confidential, Draft, Copyright) with adjustable opacity.
JPG to PDF & PDF to JPG: Convert between image formats and PDF documents at up to 300 DPI.