Prepare image for A3 Print (3508×4961 at 300 DPI)
A3 at 300 DPI is 3508×4961 pixels — twice the pixel count of A4.
Your images stay on your device. Nothing is uploaded.
A3 paper (297×420 mm) at 300 DPI requires 3508×4961 pixels. Most modern camera JPGs meet this natively at their native resolution; anything upscaled from a phone camera below 12 MP will look visibly softer at A3.
This preset produces a 4961 px JPEG at quality 95 — A3-print-ready.
Related tools
- Prepare image for A4 Print (2480×3508 at 300 DPI)
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- Prepare image for US Letter Print (2550×3300 at 300 DPI)
- Prepare image for 4×6 Photo Print (1200×1800)
- Prepare image for 5×7 Photo Print (1500×2100)
- Prepare image for 8×10 Photo Print (2400×3000)
- Prepare image for 16×20 Photo Print (4800×6000)
Frequently asked questions
- What resolution do I need for A3 300 DPI print?
- Professional print requires 300 DPI (dots per inch). The preset on this page produces the exact pixel dimensions needed at 300 DPI for A3 300 DPI print — the size that most print shops require.
- Can I print at less than 300 DPI?
- For posters viewed from a distance, 200 DPI is acceptable. For anything held in hand (postcards, flyers, business cards), 300 DPI is what separates professional-looking print from visibly soft output.
- What format should I send to the print shop?
- JPEG at maximum quality is the safest universal choice — every print shop accepts it. For designs with transparency (like T-shirt PNGs), send PNG. Ask your print shop directly if they specify a preferred colour profile.
- Do I need to add bleed?
- For any print with edge-to-edge design (business cards, flyers, posters), yes — typically 3 mm bleed on each edge. Talk to your print shop; their template usually specifies exact bleed dimensions.
- Is my image uploaded anywhere?
- No. The resize runs in your browser. Files only leave your device when you send them to the print shop.
Prepare an image for A3 300 DPI.
Drop an image and the tool sizes it for the target print resolution. Nothing uploaded.
Start compressing