Image utility
Set Image DPI for Printing
Set a photo to 300 DPI (or any DPI) for crisp, correctly-sized printing.
Your photo is processed entirely in your browser and is never uploaded to a server.
When you need this
A form requires 300 DPI
Passport and visa specifications are written in physical units, so they state a resolution — almost always 300 DPI — to fix how those millimetres translate into pixels. Some upload forms read the DPI value stored in the file and reject anything lower.
Your print came out the wrong size
A photo with no DPI metadata, or with 72 DPI, prints at whatever size the printer assumes. Setting 300 DPI tells the printer that 600 pixels means two inches, so a 2×2 in photo prints at exactly 2×2 in.
A photo shop asked for '300 DPI'
They are asking for the metadata, not more pixels. This sets the value without changing the image itself.
How to do it properly
- 1
Get the pixel dimensions right first
DPI is only metadata. Setting 300 DPI on a 200×200 px image does not make it printable at 2×2 in — it simply records an intention the pixels cannot deliver.
- 2
Set the DPI value
300 is standard for passport and visa photos. 600 is used for some high-quality document scans; 72 is a screen default and is almost never what a printed form wants.
- 3
Check the resulting print size
Pixels divided by DPI gives inches. 600 px at 300 DPI is 2 inches, which is why a US passport photo is 600×600.
If something goes wrong
Does changing DPI change my photo's quality?
No. It changes only the number recorded in the file that tells a printer how large to render it. The pixels are untouched.
The portal still says the resolution is too low
It is checking pixel dimensions, not the DPI tag. You need a physically larger image — retake or use a higher-resolution source.
What DPI do I need for printing at home?
300 DPI for photographs. Below about 200 the print starts to look soft at passport-photo size, where the whole image is only two inches across.
More tools
- Image CompressorShrink a photo to a target file size (e.g. 200 KB) without leaving your browser.
- Image ResizerResize any image to exact pixel dimensions, with optional aspect-ratio lock.
- Image ConverterConvert between JPG, PNG, and WebP instantly and privately.
- Background WhitenerClean a light or off-white ID-photo background to a pure, even white.
- Signature Cleaner & ResizerCrop, clean to white, and resize a signature for online forms and documents.
- Passport Photo Print SheetTile passport photos onto a 4×6 or A4 sheet, ready to print at home or a shop.
- Images to PDFCombine photos or scans (JPG/PNG) into a single PDF for document uploads.
- Merge PDFCombine several PDF files into one, in the order you choose.
- All passport & ID photo toolsCountry-specific passport, visa, and ID photo makers.
Frequently asked questions
- What does setting DPI do?
- DPI (dots per inch) tells a printer how large to print the image. Setting 300 DPI is standard for sharp passport and document photos; the pixels are unchanged.
- Does this change my image quality?
- No. It only updates the print-density metadata in the JPEG header. The actual pixels stay identical.
- What print size will I get?
- Print size = pixels ÷ DPI. The tool shows the resulting inches so you can confirm before downloading.
- Does changing DPI change my photo's quality?
- No. It changes only the number recorded in the file that tells a printer how large to render it. The pixels are untouched.
- The portal still says the resolution is too low
- It is checking pixel dimensions, not the DPI tag. You need a physically larger image — retake or use a higher-resolution source.
- What DPI do I need for printing at home?
- 300 DPI for photographs. Below about 200 the print starts to look soft at passport-photo size, where the whole image is only two inches across.