Set the DPI your printer or form asks for. Pixels and quality stay exactly the same.
Some portals, such as the PAN card application, check that a photo is 300 DPI. Print shops use DPI to decide how large to print. Changing DPI does not add or remove pixels, it only changes how big the image prints.
We update both places a JPG can store DPI, the JFIF header and the EXIF data, so Windows, Photoshop and upload portals all read the same value.
Convert DPI runs entirely in your browser. Your file is opened by your own device, processed there and saved back to you, so it is never uploaded to a server and never stored by us. That makes it safe for ID cards, exam forms, contracts and any other document you would rather keep private.
There is no account to create, no watermark on the result and no daily limit. You can process as many files as you like, one after another, and the tool keeps working even on a slow connection once the page has loaded.
If the result is not what you expected, change the options and run Convert DPI again on the same file. Nothing is lost, and your original file is never touched. Use the related tools below to continue the job, for example to resize, convert or merge the output.
No. Sharpness depends on the number of pixels. A higher DPI with the same pixels simply prints smaller.
No. 108pdf processes this file inside your browser using your own device. Nothing is sent to our servers, so there is nothing to delete afterwards and nothing that can leak.
Yes. It is free with no sign-up, no watermark and no daily limit.