Resize Image to A4 — 2480×3508 px at 300 DPI
A4 paper is 210×297 mm, which equals exactly 2480×3508 pixels at 300 DPI — the resolution professional printers, photo labs and print-on-demand services expect for a full-page A4 print. Upload your photo or document and ImageGates resizes it to the exact A4 pixel dimensions in seconds. Everything runs locally in your browser, with no upload, fast online processing and high-quality results on the output. Below you will find every DPI/pixel/mm/cm/inch conversion you need, plus a comparison table with US Letter, A3 and other print sizes.
How to use this tool
- Upload image — Select the image you want to print at A4 size (JPG, PNG, or WebP up to 25 MB).
- Resize to 2480×3508 — ImageGates resizes to A4 dimensions at print-quality 300 DPI resolution — exactly 210×297 mm.
- Print with confidence — Download and send to any printer for sharp, professional A4 output. High-quality results.
Guide
A4 (ISO 216) is the most common paper size worldwide outside North America. Understanding the exact pixel dimensions for A4 at different DPIs is essential for producing sharp, professional prints — and for matching the size requirements of photo labs, online print services and government document portals.
A4 dimensions across every DPI: | DPI | Width (px) | Height (px) | Use Case | |-----|-----------|------------|----------| | 72 | 595 | 842 | Screen display only (looks pixelated on paper) | | 96 | 794 | 1123 | Older web standard, low-quality print | | 150 | 1240 | 1754 | Acceptable for text documents and large posters | | 200 | 1654 | 2339 | Office laser-printer default | | 300 | 2480 | 3508 | Professional printing standard | | 600 | 4961 | 7016 | Fine-art and giclée prints | | 1200 | 9921 | 14031 | Archival reproduction |
A4 size in every unit you might need: | Unit | Width | Height | |------|-------|--------| | Millimeters (mm) | 210 | 297 | | Centimeters (cm) | 21.0 | 29.7 | | Inches (in) | 8.27 | 11.69 | | Points (pt, 1pt = 1/72 in) | 595 | 842 | | Picas (pc, 1pc = 12pt) | 49.6 | 70.2 | | Pixels @ 300 DPI | 2480 | 3508 |
A4 landscape: Simply rotate — 3508 × 2480 pixels at 300 DPI, or 297 × 210 mm. Useful for spreadsheets, infographics, presentation handouts and certificates. Both orientations use the same 2480 × 3508 image; the printer driver handles rotation.
A-series paper comparison (at 300 DPI): | Size | mm | Pixels @ 300 DPI | Common Use | |------|-----|------------------|------------| | A0 | 841 × 1189 | 9933 × 14043 | Large posters, technical drawings | | A1 | 594 × 841 | 7016 × 9933 | Posters, conference banners | | A2 | 420 × 594 | 4961 × 7016 | Medium posters, art prints | | A3 | 297 × 420 | 3508 × 4961 | Newspapers, double-page A4 | | A4 | 210 × 297 | 2480 × 3508 | Documents, flyers, photos | | A5 | 148 × 210 | 1748 × 2480 | Notebooks, half-page flyers | | A6 | 105 × 148 | 1240 × 1748 | Postcards, invitations | | A7 | 74 × 105 | 874 × 1240 | Index cards, tickets |
A4 vs US Letter: US Letter (8.5 × 11 in) is 2550 × 3300 pixels at 300 DPI — wider but shorter than A4. An A4 design printed on US Letter will have unequal top/bottom margins; a US Letter design printed on A4 will be cropped on the sides. For international print runs, design to A4 and resize for North America.
Common print sizes alongside A4 (at 300 DPI): - A4: 2480 × 3508 (210 × 297 mm) - A3: 3508 × 4961 (297 × 420 mm) - US Letter: 2550 × 3300 (8.5 × 11 in) - US Legal: 2550 × 4200 (8.5 × 14 in) - US Tabloid: 3300 × 5100 (11 × 17 in) - 4 × 6 photo: 1200 × 1800 - 5 × 7 photo: 1500 × 2100 - 6 × 8 photo: 1800 × 2400 - 8 × 10 photo: 2400 × 3000
How to choose the right DPI for A4 printing:
300 DPI is the universal default for professional output — magazines, marketing collateral, photo prints and resume printing. Most consumer inkjet printers can reproduce 300 DPI cleanly. Anything below 150 DPI will look obviously pixelated on A4. For art prints and gallery work, step up to 600 DPI. For office documents and large posters viewed from 2 m+, 150 DPI is acceptable and the file size drop is significant (one quarter the pixels of 300 DPI).
A4 print quality checklist: - Start with a source image at least 2480 × 3508 pixels - Resize to exactly 2480 × 3508 at 300 DPI before sending to print - Save as PNG for documents with text and sharp edges, JPEG at 95% for photographs - Embed an ICC color profile (sRGB for desktop printers, CMYK for offset) - Use the printer's borderless setting only if your design includes 3 mm bleed
Why this A4 resizer is safe and free:
ImageGates resizes your A4 image entirely in your browser using the HTML5 Canvas API. The file is never uploaded to any server, never logged and never retained. That makes the tool safe for sensitive documents — contracts, signed forms, ID-related artwork and any PDF render that contains personal information. The output is a clean 95% quality JPEG (or PNG if you prefer) ready for any A4 printer or photo lab.
Real-world A4 workflows we see most often:
*Resume and cover letter printing.* Job applicants outside North America almost always need A4-formatted resumes. Export your CV as a PDF, render each page to an image (or start from a design in Canva/Figma at 2480 × 3508), and resize here. Then use our JPG to PDF converter to bundle the pages back into a single print-ready file the recruiter's ATS can parse.
*Government form uploads.* Immigration, tax and licensing portals in the EU, UK, India, Australia and most of APAC accept A4 scans between 100 KB and 2 MB. Resize the scan to 2480 × 3508 here, then run it through our image compressor at 85% to hit the portal ceiling without losing legibility on the reviewer's screen.
*Photo-lab prints.* Most photo labs (Snapfish, Photobox, Vistaprint, Walmart Photo) accept A4 uploads at 300 DPI and print on 210 × 297 mm satin or matte photo paper. Resize the master here, download the JPEG, and upload directly to the lab — no additional cropping needed. For fine-art reproductions the same source can be re-exported to A3 with our A3 print resizer or scaled down to A5 with the A5 tool for postcards and half-page flyers.
*Passport photo grids.* A single 4×6 in photo lab print easily fits four 35 × 45 mm passport photos on A4. Use the country-specific passport photo tools to build the individual photos at the exact spec your government requires, then arrange four copies on a 2480 × 3508 canvas before printing.
Colour management for A4 output. Convert your final file to sRGB before sending to a desktop printer or online lab; CMYK is only needed for offset presses and most consumer printers ignore or misinterpret the profile. If colours look wrong on paper, the fix is almost always a mismatched profile — not the print resolution.
Author & source. These specifications are compiled from the ISO 216 paper-size standard, the Adobe Print Publishing Guide, and the technical upload specifications published by Snapfish, Photobox, Vistaprint and the Government of Canada immigration portal. Reviewed and updated for 2026 by the ImageGates editorial team.
Frequently asked questions
What is A4 size in pixels at 300 DPI?
A4 at 300 DPI is exactly 2480 × 3508 pixels (portrait) or 3508 × 2480 pixels (landscape). This is the print-industry standard for sharp, professional output on 210 × 297 mm A4 paper and the size expected by photo labs, commercial printers and print-on-demand services worldwide.
What is 2480 x 3508 pixels?
2480 × 3508 pixels is the resolution of A4 paper (210 × 297 mm) at 300 DPI. It is the size most commercial printers, photo labs and print-on-demand services expect for a full-page A4 print. Rotated to 3508 × 2480 it represents A4 landscape at the same 300 DPI quality.
What is A4 at 300 DPI in pixels?
A4 at 300 DPI is 2480 × 3508 pixels portrait or 3508 × 2480 landscape. That equals 210 × 297 millimeters, 21 × 29.7 centimeters, or 8.27 × 11.69 inches. 300 DPI is the standard for photo prints, magazines, flyers and resume printing.
What is 210x297 mm in pixels?
210 × 297 mm equals 2480 × 3508 pixels at 300 DPI, 1240 × 1754 pixels at 150 DPI, or 595 × 842 pixels at 72 DPI. Use 300 DPI for any photo, flyer, resume or poster you plan to print. 72 DPI is for screen display only and looks pixelated on paper.
How do I convert an image to A4 size?
Upload the image to ImageGates, choose the A4 (2480 × 3508) preset, and download. The tool fits the complete photo proportionally inside the A4 canvas without cropping or distortion. Everything runs in your browser — the file never leaves your device, and there is fast online processing and high-quality results.
What DPI do I need for printing on A4?
300 DPI is the standard for photo prints, magazines and flyers. 150 DPI is acceptable for text-heavy documents and large posters viewed from a distance. 72 DPI is screen-only and will look obviously pixelated on paper. For art prints and photographs aim for 300–600 DPI.
What is A4 at 600 DPI in pixels?
A4 at 600 DPI is 4961 × 7016 pixels — used for fine-art prints, giclée reproductions and large-format work. For everyday printing 300 DPI (2480 × 3508) is plenty; 600 DPI doubles the file size with little visible improvement at normal viewing distances.
How do I resize an image to A4 without losing quality?
Start with a source image at least as large as 2480 × 3508 pixels. ImageGates uses high-quality bicubic resampling, so upscaling a smaller file will look softer — for sharp prints always start with a high-resolution original. After resizing, save as PNG for graphics with text or JPEG at 95% for photos.
What is A4 size in inches?
A4 is 8.27 × 11.69 inches (210 × 297 mm). At 300 DPI that is 2480 × 3508 pixels. A4 is slightly narrower and taller than US Letter (8.5 × 11 in / 2550 × 3300 px at 300 DPI), so a US Letter image will not fit A4 paper without cropping or rescaling.
What is A4 size in cm?
A4 is 21.0 × 29.7 centimeters (210 × 297 mm), which is the international ISO 216 standard used everywhere outside the United States and Canada. At 300 DPI it is 2480 × 3508 pixels — the resolution most photo labs and printers expect.
Can I fit 4 passport photos on an A4 sheet?
Yes — many users print four 35 × 45 mm passport photos on a single A4 sheet to save money at the photo lab. After resizing the master to A4, use our passport photo tools to lay out four ID-sized photos on the page. A4 fits a 2 × 2 grid of 35 × 45 mm photos with margins.
Is this A4 image resizer free?
AI-powered with fast online processing, high-quality results and no upload to any server. The whole resize runs locally in your browser using the HTML5 Canvas API, so your documents and photos stay completely private.
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