How to Print OMR Sheets Correctly

A well-printed OMR sheet is easier for students to fill and much easier to check. Sheets from ToolAdda OMR are vector PDFs, so they print sharply on any printer, provided a few settings are right.

The five settings that matter

Setting	Use	Why
Scale	100% / Actual size	"Fit to page" shrinks the sheet slightly and may crop the corner squares on some printers.
Paper size	Same as the PDF (A4, Letter or Legal)	A mismatch rescales or cuts off the page.
Quality	Normal or high	Draft and toner-saving modes print faint bubbles and corner squares.
Colour	Colour for coloured sheets, otherwise greyscale is fine	Red or blue sheets printed in greyscale still work, but look less distinct.
Two-sided	Off	Print on one side so marks don't show through and pages stay in order.

Paper

Plain white 70–80 gsm paper is perfect for most tests.
90–100 gsm paper resists folding and pen bleed for important exams.
Avoid glossy or coloured paper: glare and tint can make bubbles harder to read.

Always print a test sheet

Print one copy and check that all four black corner squares are fully printed with white space around them.
Check that the QR code is sharp and the bubble letters are readable.
Fill a few answers and check the sheet with the OMR checker.
Only then print the full batch.

Numbered copies

In the generator, set the number of Copies, the First sheet no. and turn on Print sheet numbers. Every copy in the PDF gets a unique number in its footer and QR code, which helps with distribution and tracking.

Photocopying

Photocopies of a good original work well. For best results:

copy from the printed original, not from another copy;
use 100% zoom and avoid "darker" or "lighter" settings that change the corner squares;
check that the copier doesn't crop the page edges.

Printing from a phone

On Android and iPhone, download the PDF, open it and use the share or print option to send it to a wireless printer. Choose the correct paper size and "Actual size" if the option is available.

Storing and handling sheets

Keep blank sheets flat in a folder, away from moisture.
After the test, collect sheets without folding, stapling or punching holes near the corners.
If you use a document feeder scanner, remove paper clips and fan the stack to avoid double feeds.

Troubleshooting

Corner squares are cut off

Your printer's margins are larger than usual. Turn on "Fit to printable area" or "Shrink oversized pages" only for this printer; the checker handles the small change in scale.

Bubbles look faint

Turn off toner-saving or draft mode, or choose a darker sheet colour such as black.

The PDF prints on the wrong paper size

Change the paper size in the generator to match your printer's paper and download again.