Print size and DPI

Prepare pixels for paper. Check print size and resolution, or arrange photos on a printable PDF sheet.

How to prepare images for print in 3 steps

Open and inspect the image
Check pixel dimensions and the detected PPI when available. Set Resolution (PPI) to see the corresponding physical size.
Choose metadata or resampling
Leave resampling off to change supported print-resolution metadata without changing pixel dimensions. Enable resampling to target physical dimensions, or set up a photo print sheet below the editor.
Export and print at actual size
Export the image or create the print sheet PDF. Check dimensions, then print the PDF at 100% or actual size rather than fit-to-page.

Create a photo print sheet with physical measurements

The print-sheet panel uses millimetres for paper, photo dimensions, margins and spacing. Set the layout and generate a PDF containing the selected photos. Printer settings can scale a correctly sized PDF, so check actual-size printing and measure a test sheet when dimensions matter.

Try it with your own files

A 1800 × 1200 image prints at 6 × 4 inches at 300 PPI. Change resolution metadata alone, or explicitly resample to a physical size.

Know the limits

DPI metadata is written to JPG, PNG and TIFF. GIF/WebP exports do not include editable print-resolution metadata. Changing metadata adds no detail.

Private image editing on your device

Your images are opened and processed in your browser, not uploaded to a server. The website downloads the code and assets it needs to run, and some tools download a processing model. Those requests do not contain the photos you open. Download your results before closing the page; working images are not kept between visits.

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Frequently asked questions

Does changing DPI make an image sharper?

No. Metadata changes how pixels map to a physical size; it does not add photographic detail. Resampling creates more pixels but cannot reconstruct missing detail.

Which formats store the resolution setting?

JPG, PNG and TIFF support the editable print-resolution metadata in this tool. GIF and WebP exports do not.

What is the difference between PPI and DPI here?

PPI is the number of image pixels per printed inch. Printer DPI describes printer dots. The image control sets PPI, although people often search for it as DPI.