One Snap, Exact KB!
Resize Photos, Signatures & PDFs to the Exact KB
Free tools for exam, job and application forms. Pick what you need and see the result before you download.
- Files stay on your device
- 112 exam presets (15 verified against official notices)
- Free, no sign-up
Popular Tools
Image tools
- Resize Image in KB
Crop and resize to exact pixels and a KB limit.
- Photo & Signature Joiner
Combine photo and signature into one JPG.
- Passport Size Photo Maker
35×45mm photos and printable A4 / 4×6 sheets.
- Image Compressor (Bulk)
Compress up to 20 JPG, PNG, WebP or HEIC images at once.
- Photo Size Checker
Will your photo be accepted? Check it before you upload.
- HEIC to JPG
Convert iPhone photos to JPG.
PDF tools
- Compress PDF
Reduce a PDF to 50KB–500KB or a custom size.
- JPG to PDF
Combine images into one PDF, optionally under a KB limit.
- Merge PDF
Combine PDFs and photos into one file, losslessly.
- Split PDF
Extract pages or split a PDF into parts.
- Organize PDF
Reorder, remove and rotate pages with previews.
- PDF to JPG
Turn PDF pages into JPG or PNG images.
By size
- Resize Image to 20KB
For signatures and small photo slots.
- Resize Image to 50KB
The most common exam photo limit.
- Resize Image to 100KB
For certificates and larger photos.
- Resize Image to 200KB
Scans and high-quality photos.
- Signature 10KB to 20KB
Hit both the minimum and maximum.
What you get with KbSnap
See the exact pixel size and KB of every photo, signature and PDF before you upload it to your form.
Exact KB for any form
Choose 10KB to 500KB or enter your own limit, for photos, signatures and PDFs.
Exact dimensions
Pixel sizes from an exam preset or from your notification.
Files stay on your device
Processing happens in your browser. Nothing is uploaded to a server.
See it before you download
Check the final size and quality first, so your upload is not rejected.
Works on your phone
Take a photo, resize it, and download it in one go.
Free to use
No sign-up or watermark. The site is supported by ads.
How It Works
Choose
Choose your tool or exam
Add your file
Add a photo, signature or PDF
Set & adjust
Set the size and adjust
Download
Check the result and download
Exam photo & signature presets
Supported exams by category: photo and signature presets for 112 Indian exams
Central
14
UPSC, SSC, NEET, JEE Main & more
Banking
12
IBPS, SBI, RBI & other banking exams
Police
26
UP, MP, Maharashtra, Bengal Police & more
StatePSC
31
WB, Odisha, Assam, MP, Maharashtra & more
Judiciary
11
Delhi, Patna, Bombay High Court & more
Academic
10
CTET, ITI, Polytechnic & more
Defence
6
Army, Navy, Air Force recruitment exams
Other
2
Specialized exams & government positions
Quick Access
Exam Presets
Starting sizes for each exam. Confirm them in your notification before you upload.
| Exam Name | Photo Specs | Signature Specs |
|---|---|---|
| UPSC (IAS, IPS, etc.) | 400×400px (20–300KB) | 400×400px (20–100KB) |
| SSC CGL | 275×354px (20–50KB) | 708×236px (10–20KB) |
| SSC CHSL | 200×240px (20–50KB) | 708×236px (10–20KB) |
| SSC GD | 200×240px (20–50KB) | 708×236px (10–20KB) |
| NEET UG | 275×354px (10–200KB) | 275×118px (10–100KB) |
| NEET PG | 350×450px (10–80KB) | 350×150px (10–80KB) |
| JEE Main | 275×354px (10–200KB) | 275×118px (10–100KB) |
| India Post GDS | 320×400px (30–100KB) | 300×120px (20–100KB) |
| SSC MTS | 200×240px (20–50KB) | 708×236px (10–20KB) |
| IBPS (PO/Clerk) | 200×230px (20–50KB) | 140×60px (10–20KB) |
| RRB ALP | 275×354px (50–150KB) | 275×157px (30–49KB) |
| RRB NTPC | 240×240px (30–70KB) | 140×60px (30–70KB) |
| RRB Group D | 240×240px (20–50KB) | 140×60px (10–40KB) |
| Indian Army Agniveer | 350×450px (10–50KB) | 350×150px (10–20KB) |
| SSC Stenographer Grade C & D | 275×354px (20–50KB) | 708×236px (10–20KB) |
Showing 15 of 112 results
* These are KbSnap presets. Only the exams listed on Spec Updates have been checked against the official notification.
Why Choose KbSnap?
See how we stack up against other resizing methods. We prioritize your privacy and ease of use.
| Feature | KbSnap | Online Upload | Desktop Software |
|---|---|---|---|
| Privacy (Local Processing) | |||
| Pre-set Exam Dimensions | Varies | Manual setup needed | |
| Automatic File Size Compression | Varies | Hard to control exact KB | |
| Add Name & Date | Varies | Manual editing | |
| iPhone HEIC/HEIF Support | Built in | Varies | Depends on OS |
| Where Files Are Processed | Your browser | Remote server | Your computer |
| Cost | Free (ad-supported) | Varies | Free or paid |
Frequently Asked Questions
Is my photo uploaded to a server?
No. Every KbSnap tool, for photos, signatures and PDFs, works in your browser. Cropping, resizing, compressing and merging all happen on your device, and your files are never uploaded.
Will this work for my exam?
KbSnap has presets for 112 Indian exams (SSC, NEET, UPSC, IBPS, RRB, GATE, state PSCs and more); 15 of them are checked against the current official notification. For any other exam, enter the pixel size and KB limit from your notification. Always confirm the final rule in the official notice.
Can I adjust brightness and contrast?
Yes. Brightness, contrast, and signature-cleanup sliders help you fine-tune your image before download.
What file format do I get?
A JPEG file compressed to your exam's exact KB range. If you upload PNG, HEIC, or WebP, we re-encode to real JPEG automatically.
How do I resize a photo to 20KB or 50KB?
Open Resize Image in KB, add your photo, type 20 or 50 as the KB limit and set the pixel size your form asks for. The tool shows the final file size before you download. If a photo will not go that low at full size, use a smaller pixel size.
How do I compress a PDF to 100KB or 200KB?
Open Compress PDF, add the file and pick 100KB, 200KB or a custom limit. Compression is best effort: text-heavy and short PDFs shrink easily, while long scanned PDFs may need fewer pages or a lower scan quality to fit.
Does KbSnap work for PDFs and images, not only exams?
Yes. Besides the exam presets, there are general tools to resize and compress images, convert HEIC, PNG and WebP to JPG, make passport size photos, and compress, merge, split, organize and convert PDFs, for any form or portal.
Is KbSnap free?
Yes. All tools are free to use, with no sign-up and no watermark. The site is supported by ads.
Guides & Tips
Passport Size Photo vs Exam Photo: mm, Pixels & KB
A printed passport photo and an exam upload photo follow different rules. Learn how millimetres, pixels, DPI and KB relate, and how to turn one into the other.
Exam Photo Rejected? 10 Common Reasons and How to Fix Each
Wrong pixel size, a file outside the KB range, HEIC instead of JPG, a sideways photo: 10 reasons portals reject photos and signatures, with a fix for each.
How to Compress a PDF for an Online Application
Why certificate PDFs are too large, how to get them under 100KB, 200KB or 500KB, and how to keep the text readable when a portal has a strict limit.
Reduce Photo Size in KB on Your Phone (Android & iPhone)
A step-by-step way to shrink a phone photo to 20KB, 50KB or 100KB for an online form without making it blurry — and why the obvious shortcuts fail.