Guides

The tools do the job. These explain the problem — why a photo will not open, why a form keeps rejecting a PDF — so the fix makes sense rather than just working.

What is a HEIC file, and why will your PC not open it?

Half the size of a JPG, and a patent licence is why Windows refuses it.

How to get a PDF under an upload limit

Most PDFs cannot be compressed at all. Ten seconds tells you which kind you have.

Everything runs on your device

Every tool these guides point at works inside your browser. Nothing is uploaded, which is the whole reason they can be used on a passport scan or a bank statement without a second thought.