Ever printed a grid and found the squares came out a little too small? Grid Drawing puts a grid on your reference photo in real centimetres or inches, then gives you a two page PDF at exact size, with a test bar on every page so you can check the print with a ruler.
It's a grid maker for drawing on real paper, so you pick the paper first: A4 or US Letter, portrait or landscape. Then you choose the square size and the app works out how many fit, for example 9 x 13 squares of 2 cm on A4.
HOW IT WORKS
1. Tap New project and choose a photo. It's all offline, with no account.
2. Choose paper, square size and line colour. Pinch and drag to crop the part you want.
3. Open Print preview. Page 1 is your reference with the grid, page 2 is a blank drawing sheet with the same grid and labels.
4. Print at 100% or Actual size, then measure the bar at the bottom. It must be exactly 5 cm (2 in for inch projects). If it isn't, your printer scaled the page.
YOUR GRID FOR DRAWING
• Square sizes of 1, 1.5, 2, 2.5 and 3 cm, or 0.5, 0.75 and 1 in, plus any custom size
• Rows and columns labelled A, B, C across and 1, 2, 3 down, or no labels
• Line colour in black, white, red, blue or yellow, with thin, medium or bold lines
• Optional diagonals in every square, which help with angles and curves
• Grayscale to see light and dark values without colour
PRINT, SAVE OR SHARE
Print straight from the app, save the PDF to your phone or Drive, or share it to a computer. You can also save the gridded reference as a PNG image. The PDF pages use the real paper size, so the squares come out the size you chose.
DRAW FROM THE PHONE
Open reference shows the photo full screen with its drawing grid. Pinch to zoom in on details and the row and column labels stay readable at the edges. Tap the square you're drawing to mark it, so you can find your place again after a break. The screen stays on while the reference is open.
YOUR PROJECTS
Each photo is a project with its own paper, squares and crop. You can rename, duplicate or delete it. Deleting a project also removes its photo copy from the app.
THE GRID METHOD IN SHORT
The grid method for drawing splits the photo and your paper into matching squares. You copy one square at a time, so proportions come out right without tracing. It's an old grid for artists that a lot of art classes still teach for portraits, and it's just as handy for still life, pets and buildings. How to use, inside the app, walks through it step by step.
About ads: the app is free to download and shows a small banner on the projects list and the setup screen. There aren't any ads on the reference view or the print preview. A full screen ad can show when you go back to your projects after saving a PDF, starting from your second PDF and at most twice a day. A one time purchase removes all ads.
Pick a photo, print both pages, and don't skip the ruler check before you start.
Grid drawing app: put a grid on a photo in cm or inches and print it to scale.