A postcard size photo is a 4 × 6 inch print, 10.16 × 15.24 cm, held upright. Exam bulletins ask for it beside the passport print; studios stock it as standard. As a file it needs 1200 × 1800 pixels at 300 DPI, and that is what this page produces: width, height and DPI are already filled in, and the picture is resampled the moment it is loaded.
The frame is portrait, two units wide by three tall. A phone portrait is 3:4, a little squarer, so a thin strip comes off the left and right; a landscape shot loses half its width. “Crop to fill” takes the trimming evenly from both sides, and the result card lists the pixel count and the DPI written into the JPG or PNG.
Before and after
2400 × 1920 px833 KBJPG
1200 × 1800 px416 KBJPG
The dashed frame on the left marks the part that fits the new shape. It was scaled to exactly 1200 × 1800 px, and the left and right edges outside the frame were trimmed.
The file went from 833 KB to 416 KB.
The numbers are from a real run of the tool above. The pictures here are smaller previews of the actual files.
How to use it
- Pick a photo taken from the front, head in the upper middle, some wall showing on both sides; for an exam print the background should be plain white.
- Drop it in. Processing starts at once at 4 × 6 inches and 300 DPI; for a landscape card, swap the two numbers to 6 and 4.
- Look at the preview. From a 3:4 phone photo only the sides are trimmed, never the top. If the face sits off centre, cut the picture to shape with the crop tool’s free frame first and load that instead.
- Read the result card. 1200 × 1800 at 300 DPI is ready for the studio; a file bound for an exam portal with a kilobyte cap goes through the compressor next.
What the 2:3 frame keeps and what it drops
A 3000 × 4000 pixel phone portrait is 3:4. Filling a 2:3 frame from it keeps all 4000 pixels of height and trims the width to 2667, about 170 pixels off each side, before the picture is scaled down to 1200 × 1800. Nothing goes from the top.
A 4000 × 3000 landscape photo loaded into the upright frame keeps its 3000 pixels of height but only 2000 of its width, so a quarter of the picture is cut from each side. A square profile picture gives up a third of its width the same way. Only a file already at 2:3 goes in without trimming.
The NEET postcard photograph
The National Testing Agency’s NEET (UG) 2025 information bulletin listed a scanned postcard size photograph, to be between 10 kb to 200 kb in JPG/JPEG. It describes the print as Post Card size (4”X6”), in colour with a white background, and tells candidates to keep 4 to 6 copies, because one is pasted on the proforma downloaded with the admit card.
The 2025 bulletin also wanted the photograph taken after 01 January 2025 and, preferably, indicating clearly the name of the candidate along with the date of taking the photograph. The NEET (UG) 2026 bulletin repeats the advice to keep 4 to 6 Post Card size (4”X6”) colour photographs and the proforma rule, but its upload list names the passport size photograph, the signature and the finger impressions only. Check your year’s bulletin.
The tool writes no text. A name and date line has to be on the picture before it is loaded, printed by the studio or typed in a phone editor across the white strip under the chin; added to the finished 1200 × 1800 file afterwards, it is easily made too small to read.
Printing and file weight
Studios and kiosks print 4 × 6 from a JPG and read the DPI stored in it, so with 300 in the file and 1200 × 1800 pixels present the print dialog reports 4 × 6 inches. Some notices round the card to 10 × 15 cm; the gap is under 2 mm a side. An A4 sheet holds two cards, and merging two copies side by side gives one 2400 × 1800 file to print at actual size.
At 1200 × 1800 pixels the JPG this page saves usually weighs a few hundred kilobytes, over the 200 kb that the NEET upload allows. Resize first, then take the result to the 200 KB compressor, which lowers JPG quality before it touches the pixel count. A PNG stays a PNG here, but the NEET upload is JPG/JPEG only, so convert a PNG before resizing.
Frequently asked questions
- What is postcard size in cm, mm and pixels?
- 4 × 6 inches is 10.16 × 15.24 cm or 101.6 × 152.4 mm. The pixel count depends on the DPI: 1200 × 1800 at 300, 800 × 1200 at 200, 600 × 900 at 150. This page uses 300.
- Is a postcard size photo the same as a passport size photo?
- No. The passport print is 3.5 × 4.5 cm; the postcard is about three times as wide and tall, and a narrower shape. NEET asks for both: make the postcard here and the passport version on the 3.5 × 4.5 cm page, each from the original photo.
- Can I turn my passport size photo into a postcard size photo?
- A 413 × 531 passport file has to be blown up to nearly three times its width to fill 1200 × 1800; the tool will do it, but the print comes out soft. Go back to the original camera file or the studio’s digital copy and resize that.
- Should the postcard photo be portrait or landscape?
- Portrait for an exam photograph: a face is taller than it is wide, and the bulletin’s passport and postcard prints are both upright. For a landscape card, enter 6 as the width and 4 as the height.
- Will the file be under 200 kb for the NEET form?
- Usually not straight away; 1200 × 1800 pixels at the quality this page saves comes to several hundred kilobytes. Run the result through the 200 KB compressor, which drops JPG quality first and only shrinks the pixels if it must. The 10 kb floor is no concern here.