A4 Printing Guide

A4 measures 210 by 297 millimetres. It is the standard document size across India and most of the world, and it is what you get unless you deliberately ask for something else. Every university submission format, office letterhead, resume template and government form assumes it.

Because it is the default, A4 is also the cheapest size to print. Paper is bought in volume, machines are set up for it, and nothing needs trimming.

The decisions worth making are about paper weight, margins and the occasional page that should not be A4 at all.

The A Series Explained Quickly

The A series works by halving. A3 is exactly two A4 sheets side by side, at 297 by 420 mm. A5 is half an A4, at 148 by 210 mm. Because every size shares the same proportions, a document scales between them without distortion.

That has a practical use. A large spreadsheet or engineering drawing that becomes unreadable when squeezed onto A4 can be printed at A3 with no redesign. A booklet or handout can be printed A5 to feel compact and cost less paper. Most documents, though, should stay A4 because that is what readers, files and folders expect.

Choosing Paper Weight

GSM means grams per square metre and describes paper weight. Standard document printing uses 70 GSM, which is economical, handles text well and is what most assignments, notes and reports are printed on.

Step up to 80 or 100 GSM when the document is double side with heavy ink coverage, when it will be handled repeatedly, or when it represents you formally — a resume, a client proposal, a certificate. Above that, card stock in the 200 to 300 GSM range is used for covers rather than interior pages. Heavier paper costs more per sheet and adds courier weight, so choose it for a reason rather than by default.

Setting Margins Correctly

A comfortable A4 text margin is around 25 mm on the top, bottom and outside edges. The inside edge, where binding happens, should be wider — typically 30 to 38 mm for bound work, and never less than about 12 mm of clear space after binding.

Avoid pushing content right to the sheet edge. Standard document printing does not bleed to the edge, so a background colour or image that runs to the boundary will finish with a thin white border. If a full bleed look is required, the page must be printed oversize and trimmed, which is a different process and should be discussed before ordering.

When A4 Is Not The Right Size

Use A3 for engineering drawings, architectural plans, large data tables, project charts, posters for departmental display, and anything where reducing to A4 would make labels illegible. It is also used for folded A4 booklet spreads.

Use A5 for pocket notes, small handouts, event programmes and compact booklets. And keep in mind that mixing sizes inside a single bound document is possible but should be planned: an A3 sheet folded into an A4 report works well for one or two large figures, and badly for twenty.

What A4 Printing Costs And How To Reduce It

Cost follows the same four inputs as every job: pages, sides, colour mode and copies. On A4 specifically, the two effective levers are duplex printing, which halves the sheets, and mixed colour mode, which keeps colour rates off text pages.

A third lever is page count itself. Tightening line spacing from double to 1.5, or reducing an over generous margin, can remove a surprising number of pages from a long document — but only do it where the formatting guideline allows. Never compress a submission below its required format to save paper.