Deskew skewed scan pages automatically — fix feeder tilt across whole PDF documents. Rescue a 30-page crooked scan in one pass — local processing, unlimited saves.
Content reviewed October 2026 · About Toolzum
Add text, highlights, drawings, shapes, notes, signatures, and images to any PDF. Rotate, duplicate, and OCR pages (8 languages), or use one-click AI to summarize, fix, or translate. Editing runs 100% locally. AI actions are optional and cost credits, shown on each button before you click. Free, no watermark — no signup needed to start, unlimited saves.
Stamp headers and footers on every PDF page — page numbers, dates, confidentiality lines. Number a 100-page report in one pass — local pdf-lib work, unlimited saves.
Remove blank pages, embedded junk, and bloat from PDFs in one pass — compress, clean, and standardize. Shrink a bloated 80 MB archive for sharing — local work, unlimited saves.
Remove hiss, hum, and background noise from recordings with profile-based reduction. Rescue fan-noisy interviews in one pass — local FFmpeg work, unlimited saves.
Generate favicon packages — PNG icons plus Apple touch icons — from one image. Note: the .ico file is PNG data renamed (modern browsers only). Ship every platform icon in one pass — local generation, unlimited saves.
Feeder tilt under ~10° corrects cleanly with text detection; pages past 15° or with curved book-spread distortion need manual rotation first. Preview the worst page before batching all 30.
It helps enormously — straight text lines OCR at 95%+ versus 70% tilted. Always deskew before OCR, never after.
Slightly — rotation re-frames content with small edge variance. Run crop after deskew for uniform clean margins.
No — deskewing runs locally in your browser. Only the final save touches the network — downloads are unlimited.
Repair PDF
Fix corrupted PDFs that refuse to open — rebuild cross-references and salvage readable pages. Recover a deadline file from a bad download — local pdf-lib repair, unlimited saves.
PDF Cleanup
Remove blank pages, embedded junk, and bloat from PDFs in one pass — compress, clean, and standardize. Shrink a bloated 80 MB archive for sharing — local work, unlimited saves.