Change the DPI metadata of any PNG or JPEG image. Set to 300 DPI for standard print, 600 DPI for high-quality, or any custom value. Shows print dimensions instantly.
300 & 600
Print Presets
Custom
DPI Values
Live
Print Preview
Private
No Uploads
DPI is a metadata value that tells printers how large to print an image. It does not change the pixel count, file size or how the image looks on screen. Use this tool when a print shop or software requires a specific DPI value in the file metadata.
Drop your image here
PNG, JPG or WebP. Your file never leaves this device.
DPI is one of the most misunderstood concepts in digital imaging. Understanding exactly what it affects saves a lot of frustration when working with print shops, publishers and design software.
What DPI affects
What DPI does not affect
Example
A photo that is 3000 x 2000 pixels will print at exactly 10 x 6.67 inches when the DPI is set to 300. Change the DPI to 150 and the same file prints at 20 x 13.33 inches. The pixels are just spread over a larger physical area, so the print looks softer at normal viewing distance. The image file itself is identical in both cases.
Web and screen only
The historical screen standard from early monitors. Appropriate for images displayed on screen only. Do not use for any print purpose.
Windows screen default
The default DPI for Windows displays. Still a screen value, not suitable for print.
Large format and draft print
Acceptable for large banners and posters viewed from a distance of a metre or more. Also used for draft printing where quality is not critical.
Standard print quality
The industry standard for photos, brochures, business cards, books and most professional printing. Most print shops and publishers require 300 DPI minimum.
High quality and fine detail print
Used for very fine detail work, technical drawings, medical imaging and premium photo printing. Results in a much larger file if the source image has the pixel count to support it.
Changing DPI does not add pixels. If your image does not have enough pixels to print sharply at the size you need, setting a higher DPI number will not fix that. The print shop or publisher may accept your file since the DPI metadata says 300, but the output will still look soft if the pixel count is too low for the print size.
To calculate the minimum pixel count for a given print size at 300 DPI, multiply the print dimensions in inches by 300. A 5x7 inch print at 300 DPI requires at least 1500x2100 pixels. An A4 page (8.27x11.69 inches) at 300 DPI requires at least 2481x3507 pixels.
Minimum pixel count for common print sizes at 300 DPI
DPI stands for dots per inch. It is a metadata value embedded in an image file that tells printers how many pixels to place per inch of physical paper. A 3000x2000 pixel image set to 300 DPI will print at 10 by 6.67 inches. The same image at 72 DPI would print much larger but look blurry because the printer would spread those same pixels over more physical space.
No. DPI is a metadata value only. Changing it does not add or remove any pixels from the image. The pixel count, visual quality and file size all stay the same. What changes is what the image tells a printer about how large to reproduce it. On a screen, DPI has no effect at all. Browsers display images by pixel count and ignore the DPI metadata entirely.
300 DPI is the standard for high-quality print including photos, brochures and professional documents. 150 DPI is acceptable for draft prints and large format posters viewed from a distance. 600 DPI is used for very fine detail work like technical drawings and some medical imaging. 72 DPI is a common screen value and produces blurry results if used for print. Most print shops and publishers specify 300 DPI as the minimum requirement.
No. If your image is 300x300 pixels, setting DPI to 300 tells the printer to reproduce it at 1x1 inch. At that size it will look sharp. But if you want it to print at 4x4 inches at 300 DPI, you need a 1200x1200 pixel source image. DPI does not add pixels. To print at a larger size without quality loss, you need a higher resolution source image. Use the resize tool to increase pixel dimensions before changing DPI if needed.
Many image editing apps export files with 72 DPI as a default metadata value, especially when saving for web. This does not mean the image is low quality. It just means the DPI field was set to the screen default. If you have a 4000x3000 pixel image and your print shop requires 300 DPI metadata, use this tool to change the DPI value to 300. The image quality is unchanged.
No. Your image is processed entirely in your browser. The DPI value is injected into the file metadata locally without any server communication. Nothing is sent anywhere. You can disconnect from the internet after the page loads and the tool still works.
PNG and JPEG are fully supported. For PNG, the DPI value is written into the pHYs chunk, which is the standard PNG mechanism for storing physical resolution. For JPEG, the DPI value is written into the JFIF APP0 header. WebP files are accepted and converted to JPEG with the requested DPI.
Resize Image
Increase the pixel count of your image if you need more pixels for a larger print size.
Image Metadata Viewer
View all metadata including the current DPI and resolution settings embedded in any image.
Compress for Upload
Reduce file size for portals that have upload limits after setting your DPI.
PNG to JPG
Convert PNG to JPEG for smaller file sizes before submitting to print workflows.
