India Post GDS Signature Resizer (Fix 5:2 Aspect Ratio Error)

Struggling with the “Image must have 5:2 aspect ratio” error in your India Post GDS application?
You’re not alone. Thousands of candidates face rejection during the upload step because their signature doesn’t meet the exact technical requirements.

Introducing the India Post GDS Signature Resizer – the only tool designed specifically to fix this issue instantly.
It resizes your signature to the correct 5:2 ratio and optimizes it to under 20KB, so your application gets accepted without errors.

What is India Post GDS Signature Resizer?

The India Post GDS Signature Resizer is a smart online tool that helps you:

• Fix the 5:2 aspect ratio error
• Automatically set perfect dimensions (250×100 px)
• Compress file size to 10KB – 20KB
• Generate a ready-to-upload signature instantly

No manual calculation, no trial-and-error — just upload, crop, and download.

Why is India Post Rejecting My Signature?

While applying for Gramin Dak Sevak (GDS) recruitment, you may see this error:

“Image must have 5:2 (landscape) aspect ratio (+-10% tolerance).”

What does this mean?

It means:

• Your signature width must be 2.5 times the height
• Example:
  • Height = 100px → Width must be 250px

Unlike exams like SSC or UPSC, the India Post portal uses strict mathematical validation, not just visual checks.

Common Mistake

Most users:

• Crop images randomly
• Use phone editors (16:9, 4:3, etc.)

 Result: Instant rejection

The Perfect Solution

Our tool removes all confusion.

How it helps:

• Locks crop box to 5:2 ratio
• Automatically adjusts to 250×100 pixels
• Compresses file safely to ~10KB–18KB
• Ensures 100% acceptance compatibility

How to Resize Signature for GDS Online (Step-by-Step)

Follow these simple steps:

Upload Signature

Click on the upload box and select your signature image.

Crop Image

• A fixed crop box will appear
• It is already locked to 5:2 ratio
• Adjust it to fit your signature perfectly

Process Image

Click on “Standard 20KB” button
👉 This will optimize size and dimensions

Download File

Save your final image
✔ Ready for India Post GDS upload

Official GDS Photo & Signature Requirements (2025)

Make sure your documents meet these exact specifications:

Document	File Size	Aspect Ratio	Dimensions	Format
Signature	10KB – 20KB	5:2 (Landscape)	250px × 100px	JPG / JPEG
Photo	20KB – 50KB	1:1 (Square)	200px × 200px	JPG / JPEG

Common Errors and Fixes

❌ Error: “File size exceeds 20KB”

Reason:

• Image scanned in HD or high resolution

Solution:

• Use compression feature
• Reduces size without affecting clarity

❌ Error: “Dimensions are not valid”

Reason:

• Image ratio is correct but pixel size is too small
  (e.g., 50×20 px)

Solution:

• Tool resizes automatically to 250×100 px
  👉 This is the ideal “sweet spot” for GDS portal

Mobile Friendly Tool

Yes, you can use this tool on:

• Android (Chrome)
• iPhone (Safari)

👉 Just upload → pinch zoom → crop → download
Perfect for users filling forms on mobile.

Signature Tips for GDS Application

• Use Black Ink on white paper (recommended)
• Blue ink is acceptable if:
  • Background is clean white
  • Signature is clearly visible
• Write signature in single horizontal line
  • Avoid 2-line signatures (won’t fit 5:2 ratio)

Is Your Data Safe?

Absolutely safe ✅

• 100% client-side processing
• Your image is never uploaded to any server
• Everything happens inside your browser

👉 Your privacy is fully protected

Final Thoughts

The India Post GDS application system is strict, but not complicated — if you use the right tool.

Instead of guessing dimensions or retrying uploads:

✔ Use a dedicated GDS Signature Resizer
✔ Fix errors instantly
✔ Save time and avoid rejection

Frequently Asked Questions (FAQs) – India Post GDS Signature Resizer

1. What is the required signature size for India Post GDS?

The signature must be:

• File Size: 10KB – 20KB
• Dimensions: 250px (Width) × 100px (Height)
• Aspect Ratio: 5:2 (Landscape)
• Format: JPG / JPEG

2. What does the 5:2 aspect ratio mean?

It means the width of your image should be 2.5 times the height.
Example:

• Height = 100px → Width = 250px

If this ratio is not followed, your image will be rejected instantly.

3. Why is my signature getting rejected during upload?

Common reasons include:

• Wrong aspect ratio (not 5:2)
• File size above 20KB
• Incorrect dimensions
• Poor image quality

Using a proper GDS signature resizer fixes all these issues.

4. Can I resize my signature using mobile?

Yes, the tool works perfectly on:

• Android (Chrome browser)
• iPhone (Safari browser)

You can upload, crop, and download directly from your phone.

5. Which ink should I use for signature?

• Recommended: Black ink on white paper
• Also accepted: Blue ink (if clearly visible and clean background)

6. Why does the crop box look very wide?

Because the required format is 5:2 (landscape), which is a wide rectangular shape.
👉 Always sign in a single horizontal line to fit properly.

7. What if my file size is more than 20KB?

If your file exceeds 20KB:

• It will be rejected by the portal
• Use the compression feature to reduce size to 10KB–18KB safely

8. What if my dimensions are correct but still rejected?

Sometimes:

• Pixel size is too low (e.g., 50×20 px)
• Image quality is poor

👉 Use the tool to fix it to 250×100 px, which is ideal for GDS.

9. Is it safe to upload my signature on this tool?

Yes, it is completely safe:

• No server upload
• Processing happens inside your browser
• Your data is not stored or shared

10. Can I use the same signature for other exams like SSC or UPSC?

Not always.
Different exams have different requirements:

• SSC/UPSC → Flexible sizes
• GDS → Strict 5:2 ratio

👉 Always resize according to the specific exam guidelines.

11. What format should I upload my signature in?

Only:

• JPG / JPEG formats are accepted

PNG or other formats may cause upload errors.

12. How many times can I resize my signature?

Unlimited times ✅
You can upload and resize as many times as needed until you get the perfect output.