Add photos to see their size in pixels and in KB or MB. Nothing is changed. If one doesn't fit what you need, fix it right here.
Forms and websites usually limit two different things: the dimensions in pixels (width × height) and the file size in KB or MB. A photo can be small in one and large in the other, so it helps to check both before you upload.
Each photo shows its pixels, file size, megapixels, shape (like 4:3 or 9:16) and format. The exact number of bytes is there too, because some forms count 1 MB as 1,000,000 bytes and others as 1,048,576.
If a photo is too big, press “Resize or compress” and the same photos open in the normal tool, with no need to add them again.
Dimensions are how many pixels wide and tall the photo is, like 4032×3024. File size is how much space it takes, like 2.4 MB. Shrinking the dimensions also shrinks the file, but the file size can also be lowered without touching the dimensions.
No. DPI only matters for printing and doesn't change the pixels or the file size. If a form asks for centimeters or inches, convert at 300 DPI: 1 inch (2.54 cm) is 300 pixels.
No. The photo is read inside your browser and never leaves your device.
Windows and some apps count 1 KB as 1,024 bytes, so the same file looks a little smaller there. This page counts 1 KB as 1,000 bytes and shows the exact number of bytes, so you can compare with any limit.