Remove Handwriting from PDF Online
Upload any PDF with handwriting on it — worksheets, forms, notes, test papers — and InkUndo's AI erases every pen and pencil mark, returning a clean PDF ready to reuse or archive.
Try Free — No Software to InstallNo credit card required
How It Works
1. Upload Your PDF
Upload any PDF up to 20 MB and 10 pages. You can also upload JPG, PNG, WebP, or HEIC images. No registration required to try.
2. AI Erases Handwriting
InkUndo analyzes each page and removes all handwriting — signatures, annotations, filled-in answers, corrections — while keeping all printed content intact.
3. Download Clean PDF
Download a clean, print-ready PDF. Background noise is also removed, reducing file size and printer ink usage.
What Can You Remove Handwriting From?
School Worksheets
Math, reading, science, history — any printed worksheet.
Workbooks
Kumon, Singapore Math, phonics books, spelling practice.
Forms & Documents
Remove filled-in answers from reusable paper forms.
Practice Tests
Clean test papers so students can retake them fresh.
Study Notes
Remove your handwritten annotations from printed lecture notes.
Letters & Reports
Erase handwritten corrections from draft printouts.
Frequently Asked Questions
Is InkUndo free to use?
Every new account gets 2 free sheet cleanings — no credit card required. After that, credit packs start at about €0.20 per page.
Does it work with scanned PDFs?
Yes. InkUndo works with both native PDFs and scanned PDFs (images embedded in a PDF). As long as the printed content is visible, the AI can separate it from handwriting.
What types of handwriting can it remove?
InkUndo removes pencil, ballpoint pen, felt-tip pen, and marker — both dark and light marks. It is optimized for educational worksheets but works on any document.
Will my PDF's layout and formatting be preserved?
Yes. InkUndo processes each page as an image and reconstructs it without handwriting. Tables, columns, diagrams, and fonts are preserved exactly as printed.
Is my PDF kept private?
Your files are never shared with other users or third parties. Files are automatically deleted after 30 days.
Remove Handwriting from Your First PDF — Free
Start with 2 free sheet cleanings — no credit card needed.
Try Free — No Credit Card