Change to Grayscale
Convert PDF to grayscale. Remove colors from PDF
Try now →PDF Scan & OCR Tools
Turn camera captures into clean, searchable PDFs. OCR, deskew, grayscale, repair corrupted files. Batch process phone scans. Free, no signup.
OCR PDF
Convert PDF scans to searchable text and PDFs. Extract text from scans
Try now →Deskew PDF
Automatically straighten and deskew scanned PDF pages
Try now →Repair PDF
Fix corrupted or broken PDF files
Try now →Scan workflow
- Deskew: Straighten tilted phone scans (auto-detects angle up to 15°)
- Grayscale: Convert color scans to B&W — saves ink, meets portal color rules
- OCR: Add searchable text layer — enables copy, search, PDF→Word conversion
- Compress: Hit 20KB/50KB/100KB limits for exam/government portals
- Repair: Fix corrupted PDFs that won't open in other readers
Supported languages (OCR)
English, Spanish, French, German, Chinese (Simplified), Arabic — more coming.
When to repair vs. re-scan
If a PDF won't open or shows "corrupted" errors, try Repair first — it rebuilds the internal structure. If repair fails or pages are missing, re-scan at 200 DPI minimum, then Deskew + OCR.
83 tools