POST GDS 2026 Photo & Signature Resizer + Convert & Compress

Jump to your error message

Image must have 5:2 (landscape) aspect ratio (±10% tolerance)

Image must have 4:5 (portrait) aspect ratio (±10% tolerance)

Signature size should be at least 20KB

Signature size should be maximum 100KB

Photo size should be at least 30KB

Face detected in signature photo. Please upload only a signature, not a portrait.

Expected a rectangular signature shape (ratio between 1.5 and 4.5).

Upload signature (max size 100KB), file name max 10 chars

Upload your scanned signature written on white paper with a black or blue pen

Upload a recent passport size color photograph with the following specifications

Image must have 5:2 (landscape) aspect ratio (±10% tolerance)

Signature

Shown on the signature upload field

Your signature image is not wide enough for its height. India Post needs the width to be exactly 2.5 times the height — that is the 5:2 ratio. The recommended size is 300 × 120 pixels. The ±10% tolerance means a ratio between roughly 2.25 and 2.75 will pass; anything outside that is rejected.

आपके हस्ताक्षर की चौड़ाई और ऊँचाई का अनुपात 5:2 होना चाहिए — जैसे 300 × 120 पिक्सेल। यानी चौड़ाई, ऊँचाई से ढाई गुना होनी चाहिए।

Almost always because the signature was photographed on a phone. A phone camera produces a 4:3 or 3:4 frame, so even a perfectly written signature sits inside a near-square image. The signature itself is fine — the surrounding white space is the wrong shape.

1. Upload your signature to the resizer above and choose the Signature preset.
2. Drag the crop box so the signature fills the frame edge to edge. The 5:2 ratio is locked, so you cannot crop it to the wrong shape.
3. Download the result. It comes out at 300 × 120 px, JPG, inside the 20–100 KB range.

Fix my signature ratio now

Image must have 4:5 (portrait) aspect ratio (±10% tolerance)

Photograph

Shown on the photograph upload field

Your photograph is not tall enough for its width. India Post needs the height to be 1.25 times the width — the 4:5 portrait ratio. The recommended size is 320 × 400 pixels. A ratio between roughly 1.125 and 1.375 passes.

आपके फोटो की चौड़ाई और ऊँचाई का अनुपात 4:5 होना चाहिए — जैसे 320 × 400 पिक्सेल। यानी ऊँचाई, चौड़ाई से सवा गुना होनी चाहिए।

Either you uploaded a landscape or square photo, or you uploaded a scan of a printed passport-size photo that still had the white border around it. Studio passport photos are often 3.5 × 4.5 cm, which is a 7:9 ratio — close to 4:5 but outside the tolerance.

1. Upload the photo above and choose the Photo preset.
2. Position the crop box so your face fills 70–80% of the frame and is centred. Trim off any white border from a scan.
3. Download. You get 320 × 400 px, JPG, within 30–100 KB.

Fix my photo ratio now

Signature size should be at least 20KB

Signature

Your file is too small, not too large

Your signature file is too small in kilobytes. India Post requires a minimum of 20 KB so the signature is legible when printed. This is the error people find most confusing, because every other government form asks you to make files smaller.

हस्ताक्षर की फाइल का आकार कम से कम 20 KB होना चाहिए। फाइल बहुत छोटी है, इसलिए उसे बड़ा करना है।

You compressed it too hard — usually by running it through a generic "compress to 20 KB" tool, or by sending it over WhatsApp, which re-compresses images aggressively. A clean signature on white paper compresses extremely well, so it can easily land at 8–15 KB.

1. Start from the original signature file, not the WhatsApp copy. If the WhatsApp version is all you have, re-scan or re-photograph the signature.
2. Upload it above with the Signature preset. The tool targets the middle of the legal range, not the minimum, so you are not sitting on the edge of a rejection.
3. Confirm the output reads between 20 KB and 100 KB before you re-upload to the portal.

Set my signature to a valid KB size

Signature size should be maximum 100KB

Signature

Your file exceeds the upload ceiling

The opposite problem — your signature file is larger than the 100 KB ceiling.

हस्ताक्षर की फाइल 100 KB से बड़ी नहीं होनी चाहिए। फाइल को छोटा करना है।

You uploaded the raw phone photo. A modern phone camera produces a 2–6 MB image, which is 20–60 times the limit. Resizing to 300 × 120 px fixes this automatically, because the pixel dimensions are what drive the file size.

1. Upload the full-size original above with the Signature preset — do not pre-compress it yourself.
2. Crop to the signature. Resizing to 300 × 120 px normally lands you inside the range on its own.
3. Download and check the size is under 100 KB but still at least 20 KB.

Compress my signature correctly

Photo size should be at least 30KB

Photograph

The photo minimum differs from the signature minimum

Your photograph file is below the 30 KB minimum. The photo range is 30–100 KB — note that it differs from the signature range of 20–100 KB.

फोटो की फाइल कम से कम 30 KB होनी चाहिए। ध्यान दें — फोटो के लिए 30 KB और हस्ताक्षर के लिए 20 KB।

Over-compression, or you resized the photo far below 320 × 400 px before uploading. Very small pixel dimensions cannot produce a 30 KB file no matter what quality setting you use.

1. Use the highest-resolution copy of the photo you have.
2. Upload above with the Photo preset — it resizes to 320 × 400 px and targets a safe KB value in one pass.
3. Verify the output is between 30 KB and 100 KB.

Set my photo to a valid KB size

Face detected in signature photo. Please upload only a signature, not a portrait.

Signature

The portal ran face detection on your signature file

The portal ran face detection on the file in the signature field and found a face. You have uploaded your photograph into the signature box, or the signature image has a face somewhere in it.

आपने हस्ताक्षर की जगह चेहरे वाली फोटो अपलोड कर दी है। हस्ताक्षर वाले बॉक्स में केवल हस्ताक्षर अपलोड करें।

Usually the two files were swapped, because both were sitting in your gallery with similar names. Occasionally it happens when the signature was photographed on a desk and a photo ID card, newspaper face or reflection was caught at the edge of the frame.

1. Open both files and confirm which is which. Rename them photo.jpg and sign.jpg so you cannot mix them up again.
2. If a face genuinely appears at the edge of the signature image, upload it above with the Signature preset and crop tightly to the signature only.
3. Re-upload each file into its correct field.

Crop my signature cleanly

Expected a rectangular signature shape (ratio between 1.5 and 4.5).

Signature

A wider shape check than the strict 5:2 rule

A looser check than the strict 5:2 rule. The portal wants the image to be between 1.5 and 4.5 times wider than it is tall. Your image is either close to square (ratio under 1.5) or an extremely long thin strip (ratio over 4.5).

हस्ताक्षर की छवि आयताकार होनी चाहिए — चौड़ाई, ऊँचाई से 1.5 से 4.5 गुना के बीच। चौकोर या बहुत पतली पट्टी नहीं।

A ratio under 1.5 means you uploaded an uncropped phone photo. A ratio over 4.5 means you cropped too aggressively — trimming right to the ink and cutting off the vertical space above and below the signature.

1. Aim for exactly 2.5 (the 5:2 ratio), which sits comfortably in the middle of the accepted 1.5–4.5 band and also satisfies the stricter check.
2. Upload above with the Signature preset — the locked ratio makes this impossible to get wrong.
3. Leave a little white space above and below the ink rather than cropping flush to it.

Fix my signature shape

Upload signature (max size 100KB), file name max 10 chars

Signature

Two separate rules in one message

Two rules at once. The file must be under 100 KB, and the file name must be 10 characters or fewer including the .jpg extension. That leaves you just 6 characters for the name itself.

फाइल का नाम 10 अक्षर से कम रखें (.jpg सहित) और फाइल का आकार 100 KB से कम।

Phones and scanners generate long names — IMG_20260908_143022.jpg is 23 characters, and WhatsApp Image 2026-09-08 at 14.30.22.jpeg is far worse. Spaces and brackets in names cause the same rejection.

1. Rename the file to sign.jpg (8 characters) or photo.jpg (9 characters). Both fit.
2. Use only lowercase letters — no spaces, brackets, hyphens or Hindi characters in the name.
3. Confirm the extension is .jpg or .jpeg. PNG and HEIC are rejected regardless of name length.

Resize and download as sign.jpg

Upload your scanned signature written on white paper with a black or blue pen

Signature

The full instruction shown on the signature field

Upload your scanned signature written on white paper with a black or blue pen. File format: JPG/JPEG only. File size: 20 KB to 100 KB. Image dimensions: recommended 300 × 120 pixels. Aspect ratio: 5:2 (width : height). DPI: 72 to 150. Background: plain white with clear signature. Cropping tip: crop image to a 5:2 ratio (e.g. 300×120 px). Ensure the signature fits completely in the frame. Do not upload typed or digital text as your signature. Ensure the signature is clear, not shaky, and not pixelated.

— India Post GDS application portal

Six separate conditions, and the portal checks all of them. The ones applicants miss most often are DPI between 72 and 150 and no typed or digital signature — a signature drawn with a mouse, typed in a cursive font, or generated by a signature-maker app is rejected even when the dimensions are perfect.

सफेद कागज़ पर काले या नीले पेन से किया हुआ हस्ताक्षर स्कैन करके अपलोड करें। टाइप किया हुआ या डिजिटल हस्ताक्षर स्वीकार नहीं होगा।

1. Sign on plain white unlined paper with a black or blue pen. No pencil, no gel marker, no lined notebook page.
2. Photograph or scan it in even daylight with no shadow across the paper. Hold the camera parallel to the page so the signature is not skewed.
3. Upload above with the Signature preset. Format, dimensions, aspect ratio, DPI and KB range are all set for you.
4. If the ink looks faint or grey, raise the contrast before downloading — "clear, not shaky, not pixelated" is a human check at verification, not only an automated one.

Prepare a fully compliant signature

Upload a recent passport size color photograph with the following specifications

Photograph

The full instruction shown on the photograph field

The full instruction, verbatim

Upload a recent passport size color photograph with the following specifications. File format: JPG/JPEG only. File size: 30 KB to 100 KB. Image dimensions: recommended 320 × 400 pixels. Aspect ratio: 4:5 (width : height). DPI: 72 to 150. Background: plain white or light-coloured. Face should occupy 70–80% of the image with no shadows or red-eye. Cropping tip: use editing tools to crop to a 4:5 ratio (e.g. 320×400 or 240×300 px). Ensure the face is centred and clearly visible. Avoid uploading scanned photos or selfies. Ensure the photo is clear, well-lit, and in focus.

— India Post GDS application portal

What it actually requires

The two conditions that cause the most rejections at document verification are face occupying 70–80% of the frame and no selfies. A selfie taken at arm's length puts the face at roughly 40–50% of the frame, which fails the first condition even after you crop it to 4:5.

हाल की पासपोर्ट साइज़ रंगीन फोटो अपलोड करें। चेहरा फोटो का 70–80% होना चाहिए, पृष्ठभूमि सफेद या हल्के रंग की, और सेल्फी स्वीकार नहीं होगी।

How to get it right

1. Use a studio passport photo if you have one, or have someone photograph you from about 1.5 metres against a plain white wall.
2. Face the camera straight on in even light. No cap, no sunglasses, and no flash directly at the eyes — flash causes the red-eye the spec rules out.
3. Upload above with the Photo preset and position the crop so your head and the top of your shoulders fill the frame.
4. Check the face occupies roughly three-quarters of the final image before downloading.

Prepare a fully compliant photo

A rejected upload does not end your application

Application and fee payment for the Schedule-II cycle run from 2 September to 21 September 2026 (up to 5:00 PM), with a correction window on 23–24 September 2026. Fix the file and re-upload before the deadline.