Trust and privacy

What happens to the file

  • Files stay on your device for core image work. Picmu does not upload them.
  • The original file stays untouched while you preview changes and export a new copy.
  • Unsupported formats are flagged early instead of failing after a long wait.
  • The print page is explicit that DPI is guidance layered on top of real pixel dimensions, not magic quality.

Quick flow

How to use this page with confidence

  1. Drop the image into the page and review the original dimensions.
  2. Choose the print size and DPI target, then inspect the readiness feedback.
  3. Export locally or continue into upscale and cleanup only if the destination calls for it.

Benefits

Why this page is useful

Get print-oriented image guidance in the browser with DPI, output size checks, and clear readiness feedback.

Print language translated into pixels

The page turns vague print requests into concrete width, height, and DPI requirements you can inspect before export.

Readiness feedback, not false certainty

The product shows when a source is ready, acceptable, risky, or too small instead of pretending every file is print-ready.

Works with resize and upscale decisions

You can move from print guidance into enlargement or resizing without leaving the same local workflow.

Tradeoffs

What to consider before export

DPI is not the source of detail

A 300 DPI label on a small file does not create missing image information. The only honest check is whether enough pixels exist for the target size.

Larger print sizes demand more from the file

An image that looks fine on screen may still be risky for an A3 or poster-sized output.

Auto-upscale is still a compromise

Upscaling can help reach a target dimension, but the result should still be judged against the actual print use case.

Best practices

Keep the output reliable

  • Judge a file against the real print size, not a generic DPI slogan.
  • Keep expectations realistic when the source is far below the required pixels.
  • If the file is for both print and web, export separate versions for each destination.

FAQ

Questions before you export

No. DPI only makes sense relative to the number of pixels available for the final print size.

Open in Picmu

Open image for print

Print prep starts with required pixels for the final physical size. If the source is too small, the interface tells you plainly instead of hiding the risk behind marketing language.

Open image for print