Why you need picture details
Upload forms often reject photos without explaining why: the picture is too big in KB, has the wrong pixel size, or the wrong format. Knowing a picture's exact width, height, file size and type lets you fix the right thing the first time.
What you see
For each picture you get the file name, file size, file type, width and height in pixels, total megapixels and aspect ratio. The summary is shown on screen and a small JSON report is downloaded. The details describe the picture as your browser opens it; very large pictures may be scaled for processing. Camera EXIF details such as date or GPS are not shown.
Using the numbers
If a form asks for 200 × 230 pixels and your picture is 3000 × 4000, use Passport Size Photo Maker or Resize Image. If it asks for under 50 KB, use Resize Image to 50KB. An aspect ratio of 1 means square, 1.33 means 4:3, and 1.78 means 16:9.
Common problems and how to fix them
The size differs from what your phone shows: phones may show the size after applying rotation, or round the KB differently. A format is not recognised: the file may be damaged or unsupported by your browser. You need camera details: use your computer's file properties or a dedicated EXIF viewer.
Good habits
Check pictures before uploading to strict forms, read the form's rules carefully, and keep the original full-size file.