Docetta

Resize a picture to exact pixels and KB

Type what the form asks for: the width and height, and the smallest and largest file size. You get a file that matches, with a check that proves it.

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How to do it

  1. Add your photo or signature.
  2. Type the form's rules: picture size in pixels, cm, mm or inches, and the file size in KB. Leave empty anything the form does not mention.
  3. Drag the picture to choose what is kept, then download. A checklist shows the finished file passes each rule.

Questions

The form says 3.5 cm x 4.5 cm. How many pixels is that?

It depends on the DPI the form expects. Choose cm, type 3.5 and 4.5, and type the DPI if the form gives one. If it gives none, 300 DPI is used, which makes 413 x 531 pixels.

The form wants a file between 20 KB and 50 KB. Can a file be too small?

Yes, some forms reject files under a minimum. Type both numbers. If the picture comes out smaller than the minimum, harmless filler is added to the file to reach it. The picture looks the same.

What does DPI change?

For a digital upload, DPI is only a label inside the file: the pixels stay the same. Some forms check that label, so type it only if the form asks.

Are my files uploaded anywhere?

No. Everything happens inside your browser, on your own phone or computer. Your files never leave your device, which is why it also works with no internet once the page has loaded.

More free tools

Result
Original Result

Drag the line across the picture to compare.

Lay the document flat in good light, and fill the frame with it.