Example
If a form allows only PDF, JPG, or PNG files under 2 MB with no more than 10 pages, choose your file and enter those limits. The result shows which visible requirements likely pass and which ones need fixing.
Calculators & Converters
Upload File Checker
Check file size, extension, image dimensions, and PDF page count locally before submitting a file to an upload form or portal.
Local file toolActive
Best-effort checks in your browser.
Upload requirement checker
Check a file before uploading
Choose one file and optionally enter common portal rules. The checker reads file facts locally and flags issues it can detect before you submit the file elsewhere.
This is a best-effort pre-check. External portals may also check metadata, color mode, password protection, or rules that are not visible to this browser tool.
Result
No file checked yet
Select a file to see size, type, extension, image dimensions, or PDF page count when available.
Local processing: Your file is inspected in your browser. It is not uploaded to our server.
When to use this checker
Use this tool before uploading files to school portals, job applications, government forms, marketplaces, client portals, or any service with size, format, image dimension, or PDF page limits.
File sizeExtension rulesImage dimensionsPDF pages
Limitations
This tool cannot guarantee acceptance by every external portal. Some portals check hidden metadata, passwords, signatures, document contents, color profiles, or account-specific rules after upload.
FAQ
Does this upload my file?
No. The file is read with browser APIs on your device. LocalMini does not receive or store the file.
Can this guarantee my file will be accepted?
No. It is a best-effort pre-check for common visible requirements such as size, extension, image dimensions, and PDF page count.
Can it count PDF pages?
Yes for ordinary PDFs that the browser PDF library can read. Password-protected or damaged PDFs may not be readable.
What should I do if an image is too large?
Use Resize Image for pixel dimensions and Compress Image for file size. Both tools process files locally in the browser.
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