35x45 mm
Resize a Photo to 35x45 mm
35 × 45 mm at 300 DPI is 413 × 531 pixels, the printed size the UK passport office and many visa and ID forms use. Upload any photo, even a landscape one like 709 × 472, and it is center-cropped to the 7:9 portrait shape (not stretched) and saved under 100 KB, without leaving your browser.
- Runs in your browser
- Nothing uploaded
- No sign-up
- Free, no daily limits
- 1Add your file
- 2Choose settings
- 3Download
Last updated
A 35×45 mm portrait is the universal passport and visa photo standard across the United Kingdom, the European Schengen Area, Australia, New Zealand, and Indian railway recruitment. This browser-based tool scales, center-crops, and formats your picture to exactly 35 mm wide by 45 mm high, which computes to 413×531 pixels at 300 DPI print density. The tool outputs a compliant JPEG file without transmitting your personal biometric image to any remote server.
The tool center-crops the input to match the 35:45 (approx 7:9) aspect ratio and runs a compression loop targeting 10 to 100 KB. For U.S. visa or green card applications, use our 2x2 inch resizer or 600x600 px resizer, and verify your document parameters with our Document Checker.
How it works
1. Upload portrait photo
Click Upload Photo or drop your file into the designated box. JPG, PNG and WEBP formats load across all modern browsers. iPhone HEIC photos open natively in Safari, while other browsers require JPG or PNG format.
2. Confirm preset parameters
Examine the preset panel showing 413×531 Pixels, 35×45 mm in Millimeters, 300 DPI Resolution, and the 10 to 100 KB File Size target range.
3. Execute crop and quality compression
Click Resize Photo. The tool draws the image to canvas, trims excess margins to fit the 7:9 proportion, and adjusts JPEG quality to meet the byte ceiling.
4. Review specifications and download JPEG
Review the output badge. Files landing between 10 KB and 100 KB show Ready to use. Output under 10 KB receives safe zero-byte padding. Click Download to save your image.
When you'd use it
Printed UK passport applications
Formatting physical passport photos measuring 45 mm high by 35 mm wide in compliance with HM Passport Office submission guidelines.
Schengen visa and European consular filings
Preparing 35×45 mm biometric portraits for French, German, Italian, and Spanish consular appointments following Schengen standards.
Indian national entrance and recruitment exams
Generating 3.5×4.5 cm (413×531 pixel) photographs required for national medical entrance, central teacher certification, and railway registrations.
International student and travel credential cards
Creating standardized 35×45 mm identity portraits for university matriculation cards, international student IDs, and transport passes.
35 × 45 mm dimensions in pixels across different DPI settings
In physical measurements, 35 mm equals 1.378 inches and 45 mm equals 1.772 inches. Digital pixel dimensions depend directly on the Dots Per Inch (DPI) setting. At the standard 300 DPI photographic print density, multiplying physical dimensions yields 413.38 × 531.49 pixels, which rounds to exactly 413 × 531 pixels.
A landscape photograph gets cropped to preserve proportions rather than stretched. If you upload a horizontal image, the tool isolates the central 7:9 vertical slice. If your face sits toward the side, center your head first using our Crop Image tool before resizing. Note that while 413×531 pixels prints at 35×45 mm, the UK digital passport upload service requires at least 600×750 pixels.
| Resolution (DPI) | Width (35 mm) | Height (45 mm) | Total Megapixels |
|---|---|---|---|
| 72 DPI | 99 px | 128 px | 0.01 MP |
| 96 DPI | 132 px | 170 px | 0.02 MP |
| 150 DPI | 207 px | 266 px | 0.06 MP |
| 200 DPI | 276 px | 354 px | 0.10 MP |
| 300 DPI (This Tool) | 413 px | 531 px | 0.22 MP |
| 600 DPI | 827 px | 1063 px | 0.88 MP |
Which passport, visa and exam portals require 35×45 mm photos?
The UK HM Passport Office mandates that printed passport photos measure 45 mm high by 35 mm wide, with the distance from the crown of the head to the chin measuring between 29 mm and 34 mm. Similarly, Germany's official Foto-Mustertafel sets the 35×45 mm frame with 70% to 80% facial coverage (32 mm to 36 mm face height) as the standard for German passports and identity cards.
In India, national entrance and recruitment boards standardise on the 3.5 × 4.5 cm (413 × 531 px at 300 DPI) passport frame. Examples with active application portals include RRB NTPC (30–70 KB), NEET UG (10–200 KB), JEE Main (10–200 KB), CTET (10–100 KB), and BPSC (20–50 KB). In contrast, the United States mandates square 2×2 inch photos (600×600 px), and Canada specifies 50×70 mm. For American forms, use our dedicated 2x2 inch resizer.
Center-cropping mechanics and background limitations
When an image is processed, the script evaluates the source dimensions against the 35:45 aspect ratio (roughly 7:9). If your original photo is wider than this ratio, the tool trims off equal strips from the left and right sides. If your photo is narrower, it trims the top and bottom. Because this cropping is center-aligned, any face positioned off to one side risks having an ear or the crown of the head cut off. Center your subject or pre-crop your original photo manually before uploading.
The tool paints a white base on the canvas before drawing the image, which only shows through transparent pixels in files like PNG. It does not replace, lighten, or clean up the background on an ordinary opaque photograph. It does not remove background shadows or adjust room lighting. For a photo that meets these rules, take the picture against a clean, evenly lit plain light surface.
The 100 KB preset ceiling and file size troubleshooting
The 10 KB to 100 KB window is TryDocsy's own preset, calibrated to align with consular and examination upload requirements. The resizer tries progressively lower JPEG quality on the 413×531 canvas, never going under 0.1, and keeps the sharpest result that measures 100 KB or less.
In our benchmark measurement with a synthetic 1920x2560 test portrait (flat illustration; 1,858 KB / 1,903,047 bytes), the tool center-cropped to the 7:9 ratio and scaled to 413 × 531 px. It binary-searched JPEG quality down to 91.2 KB (93,352 bytes), a 95.1% size reduction that clears the 100 KB ceiling. Real phone photos come out larger at the same pixel size because camera sensor noise and background texture reduce compression efficiency.
Visa and passport photos that compress below 10 KB are padded with zero bytes placed after the JPEG end marker, reaching exactly 10 KB without any visible change. A very detailed photo that cannot get under 100 KB at quality 0.1 produces an error message and no download. Crop closer to your head and shoulders or retake it against a plain backdrop, then resize again.
Check before you upload: before submitting to an exam or visa portal, verify your output in our Document Checker using the Passport Photo, 413x531, 10-300 KB or Railway Photo, 413x531, 20-50 KB preset.
Frequently asked questions
What is 35x45 mm in pixels?
At 300 DPI print resolution, 35×45 mm calculates to approximately 413 pixels wide by 531 pixels high. At 200 DPI it is 276 × 354 pixels, and at 96 DPI screen resolution it is 132 × 170 pixels.
How many KB should a passport photo be?
Most online passport and exam portals specify between 10 KB and 100 KB (such as CTET at 10–100 KB or BPSC at 20–50 KB). TryDocsy's 35×45 mm preset targets 10 to 100 KB, with automatic byte padding if the file compresses below 10 KB.
Can I use this 35x45 mm photo for a Canadian passport?
No. Canadian passport photos require 50 mm wide by 70 mm high (2×2.75 inches). A 35×45 mm photograph is too small and will be rejected by Canadian passport authorities.
Can I use this photo for a US Visa or US Passport?
No. The U.S. State Department requires a square 2×2 inch (51×51 mm or 600×600 pixel) photograph. Use our 2x2 inch resizer for American applications.
Does this tool remove background shadows or change wall color?
No. The canvas white layer only shows through transparent pixels in files like PNG. It does not edit existing photo backgrounds, remove shadows, or alter skin tones.
How do I print a 35x45 mm photo on standard photo paper?
You can arrange multiple 35×45 mm (413×531 px) images onto a standard 4×6 inch photo sheet at a local pharmacy kiosk or print lab at 100% scale without printer shrink-to-fit options.
Are my biometric passport photos stored or sent to any server?
No. All canvas transformations, cropping operations, and JPEG encodings execute entirely within your local browser runtime. No image data or metadata is ever transmitted over the network.