It can help prepare supported images for websites, uploads, social media, sharing, palettes, watermarking, resizing, cropping, compression, or format changes.
Image tools
Increase or Fix Image DPI
Free DPI fixer for JPG, JPEG, PNG, and WebP with target DPI up to 900 and optional resize. Buy me a coffee
Mirown is free to use, if this tool saves your time
Free image DPI fixer
Increase or fix image DPI for print workflows in your browser.
Mirown Increase or Fix Image DPI helps you change the DPI value of supported images and check whether they are ready for printing. You can set a target DPI from 72 to 900, review pixel dimensions and file format, and download the fixed result.
By default, the tool updates DPI metadata for JPG and PNG without changing how the image looks. If you enable the optional resize setting, Mirown resizes the pixel dimensions based on your print width and target DPI.
How to increase or fix image DPI
- Upload JPG, JPEG, PNG, or WebP images.
- Enter print width in inches or centimeters to calculate print DPI.
- Choose a target DPI between 72 and 900.
- Keep resize off for metadata-only DPI changes on JPG and PNG, or enable resize pixels for target DPI.
- Click Fix DPI and download the fixed image or ZIP file.
Metadata change vs resizing
A metadata-only DPI change updates the DPI label used by many print and design workflows without changing the visible pixels. This is useful when an image is already large enough but marked as 72 DPI or has missing DPI metadata.
Resizing pixels is different. It changes the actual pixel dimensions based on the target DPI and print width. This can help match a print-size requirement, but enlarging a small image cannot create real detail that was not in the original photo.
Print readiness guide
- High quality: 300 DPI or higher, usually print ready.
- Medium quality: 150 to 300 DPI, often acceptable depending on print size.
- Low quality: below 150 DPI, usually not good for sharp print output.
Privacy and limits
This free DPI fixer is designed to process supported images in your browser without upload-based storage. JPG and PNG support metadata DPI updates. WebP does not have a widely supported DPI metadata field in normal browser export, so use resize mode for WebP when needed.
Related free image tools
More browser image tools for the same workflow.
Mirown connects image compression, resize, crop, conversion, WebP, watermark, DPI, palette, and rename tools with helpful internal links. Each page is free, browser-first, mobile-friendly, and does not require sign up or login for the main workflow.
Why this image tool is built for trust
- Increase or Fix Image DPI includes visible instructions, practical limits, privacy notes, and real page content.
- Supported image processing runs in the browser without account creation for the main workflow.
- Internal links connect related compression, resize, crop, conversion, DPI, watermark, palette, and rename pages.
- Important images should be reviewed after download before publishing, printing, uploading, or sending.
Frequently asked questions
Is Mirown Image DPI Fixer free?
Yes. Mirown Increase or Fix Image DPI is free to use and does not require sign up or login.
Can I change DPI without changing the image visually?
For JPG and PNG, Mirown can update DPI metadata without changing visible image pixels. This changes the DPI label used by many print workflows.
Can I make an image 300 DPI for printing?
Yes. Set target DPI to 300. You can update metadata for supported formats or optionally resize pixels based on your chosen print width.
Does WebP support DPI metadata?
WebP does not have a widely supported DPI metadata field in normal browser export. For WebP, use the optional resize pixels setting if you need pixel dimensions for a target print size.