Why a small file can still be rejected
Upload forms often check more than megabytes. They may require a particular extension, a minimum pixel size, a fixed aspect ratio, a filename pattern, or an unedited original. This checker exposes those mechanical properties before you spend time retrying the same file.
What this checker can and cannot see
- It can read the file name, byte size, MIME hint, image dimensions and common JPEG metadata markers.
- It can confirm that a file starts like a PDF, but it does not unlock password-protected documents or judge whether the document content is complete.
- It cannot decide whether a face, signature, background or scanned form meets an issuing authority’s visual rules.
When a check fails
- Read the failed property, not just the red status.
- Fix only that property with the matching Toolpia tool.
- Return to the original file and check the new copy again.
Need to change image size or dimensions? Open Image Compressor →
No result is stored by Toolpia. Keep your original until the receiving service confirms the submission.