
A3 Size Printing
Product Details
A3 Size Printing (420 × 297 mm — twice the area of A4) is the go-to format for documents and layouts that need more space: wide engineering tables, landscape presentations, architectural drawings, large flowcharts and classroom display posters.
Typical A3 Print Applications
- Engineering and technical drawing reference sheets
- Large-format presentation slides and conference posters
- Oversized spreadsheet and data table printouts
- School and college project charts and maps
- Surgical/medical imaging reference sheets
- Architectural and interior design layout reference pages
Print Specifications
- Size: A3 — 420 mm × 297 mm (landscape or portrait)
- Paper: 80 GSM bond (standard), 90 GSM (heavier), 130 GSM coated (premium)
- Black & white or full colour printing
- Single-sided or duplex printing
Finishing Options
- Unbound loose A3 sheets
- Folded to A4 for easy filing in standard folders
- Gloss or matte lamination for display copies
When to Choose A3
- When your content has fine detail that would be unreadable at A4 size
- For two A4 pages printed side-by-side on one sheet
- For landscape-orientation presentation hand-outs
Upload your A3-formatted PDF at Printster.in — we support true A3 output without scaling or cropping. Delivered flat in rigid packaging to prevent bending, to offices and homes across India.
Frequently Asked Questions
A3 measures 29.7 × 42 cm — exactly double the size of A4. Use A3 for large charts, architectural drawings, spreadsheets, maps, posters, science diagrams, and any content that needs more visual space than A4 provides.
Yes, A3 printing is available in full colour and B&W. Colour is recommended for maps, infographics, and posters; B&W is cost-effective for large spreadsheets, technical drawings, and reference charts.
75–90 GSM is recommended for A3 prints to reduce bleed-through and prevent curling. For posters or display charts that will be pinned on a wall, 100 GSM or above gives a sturdier, longer-lasting output.
Set your document page size to A3 (297 × 420 mm) in your design or word-processing software before exporting to PDF. Uploading an A4-sized PDF and requesting A3 printing may cause scaling or blank borders.
There is no minimum order — you can print a single A3 sheet. Pricing is per sheet and A3 is typically priced higher than A4 due to the larger print area and paper size.