BPSC TRE 4 (Bihar Public Service Commission Teacher Recruitment Exam 4) is one of the most important teacher recruitment exams in Bihar, attracting lakhs of candidates every year. One of the most common reasons for application rejection is uploading photos and documents that do not meet the exact file size and format requirements specified by the BPSC portal.
This guide covers the exact photo size, signature size, document format requirements for BPSC TRE 4 and shows you how to compress and resize your images for free in under 60 seconds — without installing any software.
⚠️ Always verify photo and document requirements from the official BPSC notification before submitting your form. Requirements may change between exam cycles.
| Document | File Size | Dimensions | Format |
|---|---|---|---|
| Passport Photo | 20KB – 50KB | 200 x 230 pixels | JPG/JPEG |
| Signature | 10KB – 20KB | 140 x 60 pixels | JPG/JPEG |
| Left Thumb Impression | 10KB – 20KB | 140 x 60 pixels | JPG/JPEG |
| Certificates / Documents | Max 500KB per document | A4 size scan | PDF/JPG |
💡 Most BPSC TRE candidates fail the upload step because their phone camera produces 2MB–5MB photos. You need to compress them to under 50KB without making them unrecognisable.
The BPSC online portal has limited server capacity and processes lakhs of applications simultaneously. Strict file size limits ensure the portal doesn't crash under heavy load and that all applications are stored efficiently. This is standard practice across all Indian government exam portals including UPSC, SSC, and state PSC boards.
The good news is that reducing a passport photo from 3MB to 40KB is completely achievable without any visible quality loss — because at 200x230 pixels, the image is small anyway and doesn't need high resolution data.
Go to CompressPic Resize Tool → upload your passport photo → set width to 200px and height to 230px → download the resized image.
Go to CompressPic Image Compressor → upload the resized photo → set quality to 60-70% → check the output file size shown → if still above 50KB, reduce quality to 50% → download.
On Android: long press the downloaded file → Properties → check size in KB. On iPhone: Files app → long press → Info. Confirm it is between 20KB and 50KB before uploading.
Scan your signature on white paper → upload to Resize Tool → resize to 140x60px → compress to under 20KB at 50-60% quality.
For BPSC TRE 4 passport photos, use 55-65% JPG quality. At 200x230 pixel dimensions, this consistently produces files between 15KB and 45KB — well within the required range. The photo will still be perfectly clear for identification purposes.
For signatures and thumb impressions at 140x60 pixels, use 40-50% quality. Signatures are simple black and white images with minimal detail, so compression has almost no visible impact.
For certificates and supporting documents, BPSC typically accepts PDF or JPG format with a maximum size of 500KB per document. If your scanned certificate is larger than 500KB:
Yes — as long as the tool processes images locally in your browser. CompressPic processes every image entirely inside your browser using JavaScript. Your passport photo, signature, and documents are never uploaded to any server. This means your personal photos stay completely private throughout the process.
You can verify this yourself — open your browser's developer tools, go to the Network tab, and watch that no image data is sent when you compress.
BPSC TRE 4 requires passport photos under 50KB at 200x230 pixels and signatures under 20KB at 140x60 pixels in JPG format. The two-step process — resize first, then compress — consistently produces files that meet these requirements. All processing on CompressPic happens in your browser so your photos never leave your device.
Resize to exact pixel dimensions and compress to required KB size. No registration. No watermark. Works on mobile.
Compress Photo → Resize Photo →