Change image DPI
Set the print resolution, such as 300 DPI, without resizing the image. Your inputs stay in this browser tab.
Your result
A little input. A useful result.
Your result will appear here.How to use change image dpi
Set the print resolution, such as 300 DPI, without resizing the image. This free tool runs locally after you choose to start.
- Choose supported files from your device.
- Adjust dots per inch (dpi), save as as needed.
- Choose the action button. Review the result, then copy text or download a file when available.
- Choose Clear all when finished to remove inputs and results from the interface.
Limits, without the small print.
PNG, JPEG or WebP only. Maximum 20 MB and 12 megapixels. The result is a new copy made on your device; your original file is not changed. DPI only changes the printed size. It adds no detail and does not change how sharp the image looks on screen. JPEG output is saved again at high quality.
One job runs at a time. You can cancel it; jobs stop after 30 seconds. Browser and device capabilities affect performance.
Understand the safeguards →What this tool does
DPI tells a printer how many pixels to place in each inch. The result shows the printed size at your chosen DPI. A larger sharp print needs more pixels, not just a higher DPI number.
Example input
Select a supported local file; the visible settings are a starting example.
What to expect
Review the generated local preview or downloadable copy before using it.
Questions people often ask.
Does change image dpi upload my data?
No. This tool processes your input inside your browser. Your text and files are not sent to an application server. The static host receives page and asset requests; see our privacy explanation.
Is this tool free for work and study?
Yes. No account, paid API, usage subscription or watermark fee is required. You remain responsible for your content rights and checking results. Hosting providers and their free tiers are separate from this open-source software.
What should I check before relying on the result?
PNG, JPEG or WebP only. Maximum 20 MB and 12 megapixels. The result is a new copy made on your device; your original file is not changed. DPI only changes the printed size. It adds no detail and does not change how sharp the image looks on screen. JPEG output is saved again at high quality. Review important outputs against the source, especially financial, legal, identity, medical and research calculations.
What DPI should I use for printing?
300 DPI is the usual choice for photos and documents viewed up close, and 150 DPI is often enough for posters seen from a distance. If a form or print shop states a requirement, follow it.
Does a higher DPI make my image sharper?
No. DPI only tells a printer how large to print the pixels. Sharpness depends on how many pixels the image has, so a larger sharp print needs a photo with more pixels.