Result will appear here.
Resize for a print size and DPI and write the DPI into JPG/PNG files — in your browser.
Resizes to print size × DPI and writes the DPI into JPG (JFIF) and PNG (pHYs) files.
Contain keeps the whole image; Cover fills the rectangle and may crop edges.
Browsers cannot write DPI into WebP; the result panel says so.
Resizing, encoding and DPI tagging all happen in your browser.
Image DPI Converter resizes an image to the exact pixel dimensions a chosen print size and DPI require, and writes that DPI into the output file so print software reads it correctly. For JPG it sets the JFIF density; for PNG it writes a pHYs chunk.
Enter the print width, height and target DPI, and the tool renders the image at print-size × DPI pixels. Choose Contain to keep the whole image or Cover to fill the print rectangle, which can crop the edges.
Output as JPG, PNG or WebP, with a quality control and a background colour for JPG. Browsers cannot write DPI into WebP, which the result panel states clearly.
Sets JFIF density for JPG and a pHYs chunk for PNG so print software reads the right DPI.
Renders at print size × DPI, e.g. 1200 × 1800 for 4 × 6 in at 300 DPI.
Keep the whole image, or fill the print area knowing edges may crop.
JPG, PNG or WebP output with quality and JPG background controls.
Resize a photo to exact pixels for a 4×6, 5×7 or A-series print at 300 DPI.
Produce a file whose embedded DPI matches your intended print size.
Hit a printer's required pixel dimensions and DPI in one step.
Convert a screen image into a print-ready, DPI-tagged file.
Yes. For JPG it writes the JFIF density fields and for PNG it writes a pHYs resolution chunk, so print apps read the DPI you chose. Browsers cannot write DPI metadata into WebP, which is stated in the result.
Print size multiplied by DPI. For example 4 × 6 inches at 300 DPI produces a 1200 × 1800 pixel image, resized from your original.
Only if you choose Cover, which fills the print rectangle and may trim edges. Contain keeps the whole image visible and is the default; the result panel records which fit was used.
Yes. Choose PNG (or WebP) to preserve transparency. JPG output flattens transparent areas onto the background colour you pick.
No. The image is resized, re-encoded and tagged with DPI entirely in your browser; nothing is sent to a server.
Tools that pair well with Image DPI Converter.