Can you change a photo from 72 DPI to 300 DPI?
Yes. You can pick 300, add the photo and press Convert DPI to rewrite the label. The pixels do not change: a 1200 x 800 photo remains 1200 x 800, it just prints smaller at 300 DPI instead of 72.
File converters
fixdpi
Change image DPI online, free and lossless
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Ahrefs Domain Rating set in type 25 Oct 2026, reset 25 Oct 2026.
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A browser-based tool that rewrites DPI metadata in images without changing their pixels, supporting JPEG, PNG, BMP and TIFF formats.
The story so far
fixdpi is a free online DPI converter that lets you change the DPI value stored in image files without altering the pixels themselves. You can set images to 300 DPI, 600 DPI, or any custom value up to 2400, and the tool verifies the change before download.
The tool processes all images locally in your browser with no uploads or account required. It supports JPEG, PNG, BMP and TIFF formats with lossless editing, while WebP and AVIF files are rebuilt and HEIC is converted to PNG. GIF, ICO and SVG cannot be edited.
You can convert up to 30 images of 100 MB each in a single batch and download them together as a ZIP file. The tool reads where DPI is stored in each format (JFIF and EXIF headers for JPEG, pHYs chunk for PNG, file header for BMP, IFD tags for TIFF), rewrites only that value, and leaves all other file data untouched.
Typeset features
- Supports JPEG, PNG, BMP and TIFF with lossless editing
- Custom DPI values up to 2400
- Batch processing up to 30 images at 100 MB each
- Download multiple files as single ZIP
- Verification of DPI change before download
- Built-in DPI checker to read current DPI values
- Processes images locally in browser with no uploads
Pricing
Pricing model: Free
Compare and explore
Questions and answers
Does changing DPI affect image quality?
No. By default the converter only changes the DPI label and never redraws or recompresses your image, so the quality is identical. Quality only changes if you resize the picture to add or remove pixels.
Does this tool upload my images?
No. Everything runs on your own computer in the browser, so your images are never sent to a server. You can turn off your internet after the page loads and still convert.
Which formats keep their pixels exactly the same?
JPEG, PNG, BMP and TIFF are edited without touching the picture data. WebP and AVIF can be opened but are rebuilt when DPI changes. HEIC is converted to PNG. GIF, ICO and SVG cannot have their DPI edited.
Is this DPI converter free?
Yes: there is no account, no watermark and no expiring trial. The only limit is batch size: up to 30 images of 100 MB each, converted in one go and downloadable as a single ZIP.
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