Universal Form File Checker
Inspect a photo, signature, thumb impression, handwritten declaration, or PDF and see what passes, what fails, and which tool can fix it.
1. Select the requirement
General image inspection
Expected type: IMAGE
Rules last verified: 2026-06-19
2. Choose your file
or drag and drop it here
JPG, JPEG, PNG, WebP, or PDF · maximum 50MB
Inspection report
Pass, fail, or fix now
Your results will appear here
The checker reads the real file format and reports size, dimensions, aspect ratio, DPI metadata, orientation, page count, and visual estimates where applicable.
The selected file is uploaded to the checking service for inspection and follows the configured one-hour retention policy. Avoid files that are too sensitive for an online service. See the file-handling policy.
When this tool is useful
Find out why a photograph or signature is rejected.
Confirm a banking thumb impression or declaration size.
Check a certificate PDF's real format, size, and page count.
Get a direct link to the most relevant fixer tool.
How it works
- STEP 1
Choose a preset
Select the document or portal requirement you need to test.
- STEP 2
Upload one file
The backend detects the real format and reads measurable metadata.
- STEP 3
Review and fix
Use the pass/fail report and open the recommended correction tool.
Common upload problems this solves
The extension looks correct but the portal rejects it
The checker reads the actual file signature and format instead of trusting only the filename.
The KB size is correct but dimensions are wrong
Review both the file-size and dimensions checks, then use the linked resizer.
A clear-looking scan becomes unreadable after compression
Treat clarity as a visual review step and preview every final output at full size.
Privacy and file handling
Files are uploaded for inspection and removed from processing storage after the configured one-hour retention period. The checker reports metadata and heuristic visual scores; it does not provide official approval.