Scale once before cutting the expensive material.
The tool works best with a single flat pattern image or one-page PDF. If the source contains a scale square, keep it visible and measure it after printing.
Enter the real width and height of the pattern piece. PageToPoster calculates the page grid, but the final printer setting still matters: choose Actual size or 100%, never Fit.
Keep the page labels on while assembling complicated pieces. Join complete rows first, verify the outline, then tape the rows together from behind before transferring the shape.
