Clean Scanned PDF - Remove Noise & Grain
Remove dust, specs, and grain from scanned documents. Sharpen text for crystal-clear PDFs ready for printing or archiving.
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Maximum file size: 10MB
✅ PDF Cleaned Successfully!
Your clean, noise-free PDF is ready.
What is This Tool?
Remove noise, dust, grain, and specs from scanned PDF documents online for free. This tool cleans up old scans, photocopies, and faxed documents by removing visual artifacts while preserving text clarity. Perfect for improving readability and OCR accuracy.
Noisy PDFs from old scanners, photocopiers, or fax machines contain dust specs, grain patterns, and artifacts that reduce readability and cause OCR failures. Our tool removes all noise while sharpening text for crystal-clear documents.
How to Use
Upload Your Noisy PDF - Drag and drop your scanned PDF or click to browse. Files up to 10MB supported. Processing happens in your browser.
Adjust Noise Reduction - Use the Noise Reduction Level slider (start at 50%) for most documents. The Text Sharpening slider enhances text after noise removal.
Process & Download - Click 'Clean PDF' and the tool applies median filtering to remove noise while preserving text. Download instantly.
Frequently Asked Questions
What types of noise can be removed?
Dust specs, grain, salt-and-pepper noise, scanner artifacts, and compression artifacts from scanned documents.
Will text become blurry?
No. The text sharpening feature compensates for any softening, making text clearer than the original.
Does this work on photocopies?
Yes! Excels at cleaning photocopied documents with multiple generations of copying artifacts.
Is my data secure?
Yes. All processing happens in your browser. No server uploads.
Can I adjust noise removal strength?
Yes. The slider controls how aggressively the tool removes noise. Start at 50% and adjust.
What's the maximum file size?
Supports PDFs up to 10MB. Split larger files before processing.