Change PNG DPI

Update the PNG pHYs density tag. Pixels stay the same. Up to 20 files, 1–2400 DPI. Free, no account.

JPG PNG

or drop images here

How to change PNG DPI

This updates the PNG density tag used for print size. It does not resize the graphic or add detail.

  1. 1

    Select up to 20 PNGs, 25 MB each, or drop them onto the page.

  2. 2

    Enter a DPI from 1 to 2400 or pick a preset. Check the new print size.

  3. 3

    Start the update and download. Transparency is unrelated to the DPI tag.

Related image tools

Change Image DPI Check Image DPI Resize Image Product Image Maker

Change PNG DPI questions

Answers about pHYs, print size and uploads.

Does changing PNG DPI keep transparency?

Yes. The density tag is separate from alpha. Pixels, including transparent ones, stay the same.

Check Image DPI

Will a higher DPI sharpen a PNG logo?

No. You only change how large the same pixels print.

Resize Image

Are PNGs stored on the server?

They are uploaded only when the update starts. The result is not kept permanently after the request.

Product Image Maker

Should I resize the PNG instead?

Resize when you need a different pixel size. Change DPI only when a print workflow asks for a tag.

Change Image DPI