Enhance the quality of scanned or low-resolution PDFs using AI. Ideal for old scanned contracts, faxed documents, and receipts where text is barely readable.
Free outputs carry a small "Processed by Konomic" footer. Upgrade to remove
Drag & drop files here, or click to browse
PDF · up to 50 MB (free)
Upload your PDF
Choose upscale factor (2x, 3x, or 4x)
Click 'Upscale PDF'
Download the enhanced file
No hidden fees, no credit card required. Basic tools are free forever.
Files are encrypted in transit and deleted automatically after 1 hour.
Most operations complete in under 10 seconds. Powered by optimized servers.
Works directly in your browser. No software to download or install.
Works on Windows, Mac, Linux, iPhone, Android, and Chromebook.
We never share, sell, or access your files. Full privacy guaranteed.
Yes — upscaling scanned PDFs often improves OCR accuracy dramatically. Try upscaling first, then running OCR.
Large PDFs with many pages can take a few minutes since each page is upscaled individually. The free tier handles up to 150 pages per operation; Pro up to 300.
Upscaling helps most when the PDF is made of images or scans. Text PDFs (where text is vector-based) stay the same since they are already resolution-independent.
