# Document Checker > Verify exam photo and signature against form requirements **Canonical:** https://trydocsy.com/forms/checker **Last updated:** 2026-09-18 **Privacy:** Runs in your browser; the file is never uploaded. --- Document Checker provides automated, pre-flight validation for exam photographs and signatures before candidates submit applications to government and educational portals. By auditing uploaded images against official dimensional tolerances, byte thresholds, and MIME formats, the utility detects compliance errors that trigger portal rejection notices or delayed admit card issuance. The entire diagnostic inspection executes locally in your browser session using native JavaScript image decoding. Your identification photos and signatures are never transmitted across the network, preserving strict data privacy while delivering instant pass or fail assessments. ## How it works 1. **Upload your photo or signature file** — Click the designated upload zone to select an image from your device. The checker decodes the file in memory and extracts its native pixel resolution and byte size. 2. **Choose the target exam specification** — Select your target recruitment board or document type from the dropdown menu, including SSC, IBPS, UPSC OTR, Railway, Indian Passport, or US Visa presets. 3. **Execute automated five-point verification** — Click Verify Document to evaluate width, height, file size range, MIME type, and aspect ratio (for fixed presets) against official portal rules. 4. **Review diagnostic results and correct discrepancies** — Review the pass/fail breakdown card. If discrepancies are flagged, use the direct corrective links to resize, recompress, or redraw your document. ## When you'd use it - **Staff Selection Commission (SSC CGL and CHSL) pre-upload check** — Verify that portraits match the 200×230 pixel target within the 10-pixel tolerance band and confirm that signatures sit strictly between 10 KB and 20 KB in JPEG format. - **Banking recruitment (IBPS and SBI) document validation** — Ensure banking signatures meet the 140×60 pixel standard and photographs satisfy the 20 KB minimum threshold to prevent admit card photo-stripping. - **UPSC Civil Services OTR compliance auditing** — Verify that civil service identity photos and signatures comply with the 350 to 1000 pixel width and height boundaries without forcing an artificial square ratio, and satisfy the mandatory 20 KB to 300 KB file size limits. - **Railway Recruitment Board (RRB NTPC and Group D) verification** — Confirm that railway application portraits adhere to the 413×531 pixel specification and signatures remain within the 236×83 pixel framework. - **US Visa DS-160 and passport photo confirmation** — Audit square 600×600 pixel digital portraits against the 50 KB to 240 KB boundary mandated by consular document upload engines. ## The five automated compliance checks explained Online recruitment portals employ automated server scripts that reject non-compliant files upon upload. Document Checker replicates this server-side validation locally across five key parameters: pixel width, pixel height, file size, image format, and aspect ratio. Width and height are measured directly from the decoded image raster and checked against the board's target dimensions with an allowed tolerance of ±10 to ±15 pixels depending on the authority, or against independent min/max boundaries for range presets like UPSC OTR (350 to 1000 px). File weight is computed in kilobytes and tested against both the lower floor (to prevent blurry uploads) and upper ceiling (to prevent server overflow). The format check ensures the MIME structure is image/jpeg. For fixed-dimension presets, the aspect ratio check verifies proportional balance within a strict 5% margin, whereas range-based specifications evaluate dimensions independently without imposing a square constraint. ## Why government portals reject application uploads Application rejections rarely stem from malicious intent; they occur because automated portal intake filters discard files that fail binary checks. The most common pitfall is uploading PNG files: while PNG images look crisp, most government portals hard-code checks for .jpg or .jpeg extensions and throw immediate validation errors. Another prevalent failure is file size violation. Smartphone cameras capture photos weighing between 2 MB and 8 MB. When candidates compress these images using generic tools, they often over-compress below the portal's mandatory minimum (such as 20 KB for photos or 10 KB for signatures), which triggers automated rejection. Running this tool catches these errors before you hit portal deadlines. ## Remediation workflows for failing documents When an image fails one or more criteria, Document Checker pinpoints the exact failure reason and provides a direct pathway to resolve it. If the width, height, or aspect ratio fails, click through to Photo Resizer for Exams or Signature Creator, which will automatically reframe your document onto the correct canvas dimensions. If the image meets dimensions but fails the kilobyte ceiling, route the file to our client-side image compression tool to recalculate the JPEG quality factor. Once adjusted, re-upload the file here to confirm 100% compliance across all five verification points. ## Frequently asked questions **Q: What does the pixel tolerance value mean?** A: Government exam portals recognize that image decoders may introduce minor rounding variations. A tolerance of ±10 px means an image specified at 200 px is accepted between 190 px and 210 px without triggering server rejection. **Q: Why was my PNG image marked as failed when dimensions were correct?** A: Most recruitment portals, including SSC, UPSC, and IBPS, strictly require JPEG/JPG format. Even if a PNG has the exact pixel dimensions, portal upload scripts will reject it. Convert the image to JPG to pass. **Q: How is the aspect ratio calculated and checked?** A: For fixed-dimension presets, the tool divides pixel width by pixel height for both your image and the requirement; if the difference is less than 5%, the aspect ratio passes. For range-based presets such as UPSC OTR (350–1000 px), aspect ratio is not restricted as long as width and height both fall within official boundaries. **Q: Are my uploaded personal documents sent to any server?** A: No. All checks are performed completely inside your browser using HTML5 Canvas and JavaScript FileReader APIs. No images or metadata are transmitted across the internet. **Q: Can I verify both photos and signatures with this checker?** A: Yes. The dropdown menu includes specific presets for both photographs and signatures across major central, banking, and railway recruitment examinations. **Q: What should I do if my document fails the file size check?** A: If your file is too large, use our Image Compressor to reduce the file size below the ceiling. If your file is too small, use Photo Resizer or Signature Creator, which automatically pad the JPEG to satisfy minimum thresholds. ## Related tools - [Photo Resizer for Exams](https://trydocsy.com/forms/photo-resize) - [Signature Resizer](https://trydocsy.com/forms/signature) - [Document Scanner](https://trydocsy.com/forms/scanner) - [Compress Image](https://trydocsy.com/image/compress) - [Crop Image](https://trydocsy.com/image/crop) --- ## About TryDocsy TryDocsy is a free website of PDF, image and file-conversion tools that run entirely in your web browser, so your files are processed on your own device and never uploaded. It also includes photo and signature resizers preset to Indian government-exam specifications. - Website: https://trydocsy.com - Privacy Policy: https://trydocsy.com/privacy - Terms of Service: https://trydocsy.com/terms - Contact: https://trydocsy.com/contact