4× is the sweet spot for turning a low-resolution scan into something sharp enough to print or zoom into without pixelation.
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Yes. Upscaling PDFs is free — 3 operations a day without an account, 20 with a free account (includes a 30-day Pro trial).
4× is the sweet spot for turning a low-resolution scan into something sharp enough to print or zoom into without pixelation. Processing runs on our servers, so there's nothing to install and it works on any device.
Upscaling reconstructs edges and detail rather than just stretching pixels, so text and line art come out noticeably cleaner than a naive zoom.
Yes. Files are processed in an isolated worker and auto-deleted within an hour. EU servers, GDPR-compliant, never used to train AI.
