Set the DPI to 600 for print or an upload form. The photo itself is not re-saved.
DPI tells printers and software how many pixels to place in one inch. At 600 DPI, an image 600 pixels wide prints 1.00 inches (2.54 cm) wide.
600 DPI is the usual requirement for print shops and for forms such as the PAN card photo, which asks for 300 DPI.
Change DPI to 600 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 Change DPI to 600 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. We only rewrite the DPI value stored in the file, in both the JFIF header and EXIF data. The pixels are copied byte for byte.
If a form asks for a physical size such as 3.5 x 4.5 cm at 300 DPI, use Resize Image in CM instead. It sets the pixels and the DPI together.
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.