All PDF tool categories
100 free PDF tools organized into 8 categories. Every tool runs entirely in your browser — no upload, no account, no watermark.
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Organize PDF
Merge, split, rotate, crop, reorder, delete and insert pages. 14 tools for controlling PDF structure.
14 tools → -
Compress & Optimize
Reduce file size, hit target sizes like 100KB, downsample images, remove metadata. 12 tools.
12 tools → -
Convert PDF
Convert Word, Excel, PowerPoint, images, HTML, CSV, TXT and SVG to PDF and back. 24 tools.
24 tools → -
Edit PDF
Add text, images, shapes, highlights, underlines, comments and links. 12 tools.
12 tools → -
PDF Security
Protect, unlock, watermark, redact, sign, encrypt and manage permissions. 11 tools.
11 tools → -
Page & Layout
Page numbers, headers, footers, bookmarks, margins, N-up, booklet imposition. 11 tools.
11 tools → -
OCR & Advanced
OCR, make PDFs searchable, compare documents, extract metadata, create forms. 10 tools.
10 tools → -
PDF Images
Convert PDF to JPG, PNG, WebP, GIF, BMP, TIFF. Extract and compress images. 6 tools.
6 tools →
How to choose a category
The eight categories cover every common PDF task. If you know what you want to do, match it to a category:
- Combining or splitting files, fixing orientation → Organize PDF
- Making a file smaller or fitting a size limit → Compress & Optimize
- Changing the file format → Convert PDF
- Adding text, images, or annotations → Edit PDF
- Password protection, watermarks or signatures → PDF Security
- Page numbers, headers, print imposition → Page & Layout
- Recognising text in scans or inspecting metadata → OCR & Advanced
- Converting to or extracting images → PDF Images
Most-used tools across categories
- Merge PDF — combine files into one
- Compress PDF — reduce file size
- PDF to Word — extract editable text
- JPG to PDF — convert images to a document
- Split PDF — separate pages into files
- Protect PDF — add a password
Every tool runs locally
All 100 tools process your files in your browser using JavaScript and WebAssembly. Your documents never leave your device. This makes OmniPDF safe for confidential documents — contracts, medical records, tax returns, internal reports, and identification scans.
See How it works for the technical details, or Security for the full privacy model.