Updated · how we check
Singapore ABTC photo and signature size
The Singapore ABTC form takes a photo of 400 × 514 px, at most 8 MB (JPG/JPEG, HEIC or PNG) and a signature of 250 × 220 px (preferred), at most 60 KB (JPG/JPEG). It also takes a letter of authorisation or support (at most 1 MB).
Singapore ABTC photo
JPG · under 8 MB (at most 8,000,000 bytes) · 400x514 px · white background
PixelFit aims at 8,000,000 bytes or less, so the file passes whether the form counts 1 MB as 1,000,000 or 1,048,576 bytes.
Fit, background and padding crop to fill · white background
Saving presets is part of Pro.
The result appears here: the exact byte count, pixel size and quality, the size before and after, a preview and a download button.
The batch kit (one ZIP for up to 500 photos, several photos merged into one PDF) is part of Pro.
Singapore ABTC upload specifications
Values for the Singapore APEC Business Travel Card (ABTC) application for Singapore citizens, copied from ICA Singapore: APEC Business Travel Card for Singapore citizens, documents required, checked 31 October 2026; "not stated" means the source gives no figure for it.
| Upload | Pixel size | Print size | File size | Format | Background |
|---|---|---|---|---|---|
| Photo | 400 × 514 px | not stated | at most 8 MB | JPG/JPEG, HEIC or PNG | not stated |
| Signature | 250 × 220 px preferred | not stated | at most 60 KB | JPG/JPEG | not stated |
| Letter of authorisation or support | not stated | not stated | at most 1 MB | JPG/JPEG or PDF | not stated |
Singapore ABTC sizes in pixels and millimetres
Print sizes become pixels at a resolution (pixels = mm ÷ 25.4 × DPI); pixel sizes become print sizes the other way round. Computed for the Singapore ABTC uploads at 200 and 300 DPI.
| Upload | Aspect ratio | Megapixels | At 200 DPI | At 300 DPI |
|---|---|---|---|---|
| Photo | 200:257 | 0.206 MP | 50.8 × 65.3 mm | 33.9 × 43.5 mm |
| Signature | 25:22 | 0.055 MP | 31.8 × 27.9 mm | 21.2 × 18.6 mm |
What the Singapore ABTC KB limits mean in bytes
The Singapore ABTC photo limit of 8 MB is 8,388,608 bytes when 1 MB = 1,048,576 bytes and 8,000,000 bytes when 1 MB = 1,000,000 bytes; a file of 8,000,000 bytes or less passes either way.
The Singapore ABTC signature limit of 60 KB is 61,440 bytes when 1 KB = 1,024 bytes and 60,000 bytes when 1 KB = 1,000 bytes; a file of 60,000 bytes or less passes either way.
The Singapore ABTC letter of authorisation or support limit of 1 MB is 1,048,576 bytes when 1 MB = 1,048,576 bytes and 1,000,000 bytes when 1 MB = 1,000,000 bytes; a file of 1,000,000 bytes or less passes either way.
Estimated JPG file size for Singapore ABTC uploads
Estimated from sizes measured with sharp 0.35.5 / libvips 8.18.7 on public-domain sample images (31 October 2026), interpolated to each target size. Your own scan can land 30-50% either side, which is why the tool measures the real file.
| Upload | Pixel size used | Quality 60 | Quality 75 | Quality 85 | Quality 95 | Limit |
|---|---|---|---|---|---|---|
| Photo | 400 × 514 px | 23.2 KB | 29.7 KB | 39.3 KB | 68.5 KB | at most 8 MB |
| Signature | 250 × 220 px | 3.9 KB | 5.5 KB | 7.8 KB | 14.8 KB | at most 60 KB |
Will the Singapore ABTC photo fit the limit?
For the Singapore ABTC photo at 400 × 514 px, even quality 95, the highest setting estimated here, stays under 8 MB at about 68.5 KB.
For the Singapore ABTC signature at 250 × 220 px, even quality 95, the highest setting estimated here, stays under 60 KB at about 14.8 KB.
Singapore ABTC rejection checklist
Upload checks computed from the Singapore ABTC specification; a file that fails any one of them is usually refused at upload or flagged later.
- Photo: File type is JPG/JPEG, HEIC or PNG.
- Photo: The Singapore ABTC photo file is no larger than 8 MB (8,000,000 bytes is safe whether 1 MB is read as 1,000,000 or 1,048,576 bytes).
- Photo: Pixel size is 400 × 514 px.
- Signature: File type is JPG/JPEG (a PNG or HEIC renamed to .jpg is still rejected).
- Signature: The Singapore ABTC signature file is no larger than 60 KB (60,000 bytes is safe under both KB definitions).
- Signature: Pixel size is 250 × 220 px (the preferred size; the hard checks are on file size).
- Letter of authorisation or support: File type is JPG/JPEG or PDF.
- Letter of authorisation or support: The Singapore ABTC letter of authorisation or support file is no larger than 1 MB (1,000,000 bytes is safe whether 1 MB is read as 1,000,000 or 1,048,576 bytes).
How to resize your photo for Singapore ABTC
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Take or scan the photo
Use a recent colour photo.
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Load the preset
Drop the file into the tool at the top of this page. The "Singapore ABTC photo" preset is already set to 400 × 514 px and at most 8 MB, as JPG/JPEG, HEIC or PNG.
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Check the result
Read the before and after sizes: the Singapore ABTC photo must end at or under 8,000,000 bytes. Download it.
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Switch to the signature
Pick the "Singapore ABTC signature" preset, set to 250 × 220 px (preferred) and at most 60 KB as JPG/JPEG, and repeat with the signature file.
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Upload and preview
Upload the files on the Singapore ABTC form and check the preview before you submit; verify the figures with the official notice first.
What the Singapore ABTC source also says
- Applicants representing an organisation also upload a letter of authorisation or support as JPEG or PDF, under 1 MB.
- Photo: A recent passport-sized, digital, colour photograph taken within the last 3 months.
- Photo: The photo follows the ICA Photo Guidelines (ica.gov.sg/photo-guidelines, checked 31 October 2026): 400 x 514 px, JPG, JPEG, HEIC, HEIF or PNG, at most 8 MB.
- Signature: A scanned signature image.
- Letter of authorisation or support: Only for applicants representing an organisation or company.
Singapore ABTC compared with similar forms
Of these 5 forms, the Singapore ABTC photo limit of 8 MB is the most generous, level with Singapore ICA; a file made for a stricter form usually passes a more generous one only if it also meets the minimum and the pixel size.
| Form | Photo size | Photo file size | Signature file size |
|---|---|---|---|
| Singapore ABTC (this page) | 400 × 514 px | at most 8 MB | at most 60 KB |
| Singapore ICA | 400 × 514 px | at most 8 MB | none |
| Canada IEC | at least 420 × 540 px | at least 60 KB | none |
| UK visa | at least 600 × 750 px | 50 KB–6 MB | none |
| NZ visa | 3:4 shape (width:height) | 512 KB–3.14 MB | none |
Where the Singapore ABTC figures come from
Verify with the official Singapore ABTC notice before you submit: forms change between application cycles and the check on the live portal is final.
Sources
- ICA Singapore: APEC Business Travel Card for Singapore citizens, documents required, Immigration & Checkpoints Authority (ICA), Singapore, checked 31 October 2026: ica.gov.sg/information-and-e-services/entry-and-departure…
- Measured by PixelFit with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to each Singapore ABTC target size, on these samples: head-and-shoulders portrait, Pete Souza (Official White House photo), public domain: commons.wikimedia.org/wiki/File:President_Barack_Obama.jpg; handwritten letter with signature, Ulysses S. Grant (via DPLA), public domain: commons.wikimedia.org/wiki/File:Ulysses_S._Grant_letter_t…
Frequently asked questions
What is the photo size for Singapore ABTC in KB?
The Singapore ABTC photo must be at most 8 MB (keep it at or under 8,000,000 bytes to be safe), 400 × 514 px, as JPG/JPEG, HEIC or PNG.
What is the signature size for Singapore ABTC?
The Singapore ABTC signature must be at most 60 KB, 250 × 220 px (preferred), as JPG/JPEG.
How do I resize my photo to 8 MB for Singapore ABTC?
Open the tool on this page with the Singapore ABTC photo preset, drop the file and download the result: it searches JPG quality until the file is under 8 MB; at 400 × 514 px expect about 39.3 KB at quality 85. Nothing is uploaded.
What pixel size should the Singapore ABTC photo be?
400 × 514 px.
Can I upload a PNG or PDF for the Singapore ABTC photo?
The accepted types are JPG/JPEG, HEIC or PNG; PDF is not listed. The tool can turn a PNG, WebP or (in Safari) HEIC file into JPG while it resizes.
Related
Similar forms
- Singapore ICA photo size at most 8 MB
- Canada IEC photo size at least 60 KB
- UK visa photo size 50 KB–6 MB
- NZ visa photo size 512 KB–3.14 MB
- Indonesia e-Visa photo size at most 2 MB
- Japan eVISA photo size at most 2 MB
Compress to the Singapore ABTC limits
- Compress an image to 5 MB Singapore ABTC photo limit at most 8 MB
- Compress an image to 60 KB Singapore ABTC signature limit at most 60 KB
- Compress an image to 1 MB Singapore ABTC letter of authorisation or support limit at most 1 MB
Resize to the exact size
- Resize an image to 400×514 px Singapore ABTC photo
- Image resizer (any size and KB target)
Change the file format
- PNG to JPG Singapore ABTC accepts JPG/JPEG, HEIC, PNG
- WEBP to JPG Singapore ABTC accepts JPG/JPEG, HEIC, PNG
- HEIC to JPG Singapore ABTC accepts JPG/JPEG, HEIC, PNG