Compress PDF to 100KB
Reduce PDF file size to 100KB or less for online forms, exams, and job portals — free, fast, and 100% private.
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UPSC, SSC, Banking & Exam Portal Size Guidelines
Compare exact size limits, dimensions, and accepted file formats across major Indian official portals.
| Portal / Exam | Document / Item | Format | Size Limit | Quick Tool |
|---|---|---|---|---|
| SSC (CGL, CHSL, MTS, GD) | Candidate Signature 6.0 × 2.0 cm (or 4.0 × 2.0 cm) Black ink only. Running cursive handwriting (BLOCK letters rejected). Must fill 80% of box. | JPG / JPEG | 10 KB – 20 KB | Resize Signature (10–20KB) |
| SSC (CGL, CHSL, MTS, GD) | Candidate Photograph Webcam / Mobile Camera Direct webcam/phone camera capture on ssc.gov.in. Plain background, no glasses, no cap. | Live Capture | Portal Live Module | Photo Resizer |
| SSC (CGL, CHSL, MTS, GD) | Certificates & Documents Standard A4 Document Caste, Domicile, and Educational certificates. Must be clearly readable with official seal. | 100 KB – 300 KB | Compress PDF to 100KB | |
| IBPS (PO, Clerk, SO, RRB) | Passport Photograph 200 × 230 px (4.5 × 3.5 cm) Light/white background. 80% face coverage. No glare, no red-eye. Recent color portrait. | JPG / JPEG | 20 KB – 50 KB | Resize Photo (20–50KB) |
| IBPS (PO, Clerk, SO, RRB) | Candidate Signature 140 × 60 px Black ink pen on white paper. Running hand only (CAPITAL letters strictly invalid). | JPG / JPEG | 10 KB – 20 KB | Resize Signature (10–20KB) |
| IBPS (PO, Clerk, SO, RRB) | Left Thumb Impression (LTI) 240 × 240 px (200 DPI) Black or blue stamp pad on white paper. Clear ridges, no smudge. | JPG / JPEG | 20 KB – 50 KB | Resize LTI Image |
| IBPS (PO, Clerk, SO, RRB) | Handwritten Declaration 800 × 400 px (200 DPI) In English, black ink on white paper. Must NOT be written in capital letters. | JPG / JPEG | 50 KB – 100 KB | Resize Declaration Image |
| UPSC (CSE, CDS, NDA, OTR) | Candidate Photograph 350 × 350 px min (4.5 × 3.5 cm) Plain white background, 75% face visible. Plus live photograph capture verification during OTR. | JPG / JPEG | 20 KB – 300 KB | Resize Photo for UPSC |
| UPSC (CSE, CDS, NDA, OTR) | Candidate Signature 350 × 350 px min Single image file containing 3 identical signatures stacked vertically in black ink. | JPG / JPEG | 20 KB – 100 KB | Resize Signature for UPSC |
| UPSC (CSE, CDS, NDA, OTR) | Photo ID, Degree & Caste Cert. Multi-page or Single A4 PDF Must not exceed 300 KB maximum limit. Clear text required for OTR profile approval. | 20 KB – 300 KB | Compress PDF under 300KB | |
| NTA (NEET UG, JEE Main) | Passport Size Photo 3.5 × 4.5 cm (80% face) White background, colored picture, name and date printed on bottom of photo for NEET. | JPG / JPEG | 10 KB – 200 KB | Resize Photo for NTA |
| NTA (NEET UG, JEE Main) | Candidate Signature 3.5 × 1.5 cm Black or blue ballpoint ink on plain white paper. Cursive handwriting. | JPG / JPEG | 10 KB – 100 KB | Resize Signature for NTA |
| Railways RRB (NTPC, ALP, Group D) | SC / ST Free Travel Certificate Clear Government Certificate Required for booking free sleeper train travel pass. Must show issuing officer seal clearly. | Under 500 KB | Compress PDF for RRB | |
| GATE (IIT GOAPS Portal) | Photograph & Signature Photo: 200×260 px min. Sign: 250×80 px min Strict white background, aspect ratio 2.75 to 3.75 for signature in black/dark blue ink. | JPG / JPEG | 5 KB – 600 KB (Photo) / 3 KB – 300 KB (Sign) | Resize Image for GATE |
* Always confirm specifications in the specific exam advertisement PDF before final submission.
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Frequently Asked Questions
How does PDFCraft target under 100KB?+
Simply select or drop your PDF above. PDFCraft targets the 100KB size limit directly in browser memory. If the document can reach 100KB while keeping text legible, it saves the optimized file. If not, it shows you the exact physical minimum boundary so you can make informed quality trade-offs.
Will government or banking job portals accept this PDF?+
Yes! Portals for UPSC, SSC, IBPS, State PSC, university admissions, and visa applications require certificates and marksheets to be in PDF format (usually under 100KB, 200KB, or 300KB). Note: for passport photos and signatures, portals generally require JPG/JPEG format instead.
Are my confidential certificates or marksheets uploaded to a server?+
No. All processing occurs 100% client-side inside your browser memory using Web APIs and PDF-Lib. Your personal certificates, resumes, and marksheets never leave your device.
What if my PDF cannot physically shrink below 100KB?+
Multi-page documents (such as 10+ page scanned booklets) have a minimum byte floor. PDFCraft calculates this minimum boundary dynamically and alerts you rather than overcompressing pages into unreadable blur.