Check print scale with a 100 mm line
A PDF can specify the right dimensions and still come out smaller on paper. The printer dialog is often the missing step. Check one page before using the rest of the paper.
Export the calibration page
You can download the calibration-only PDF directly from Print Studio, without importing an image. Or leave the calibration option enabled when exporting your layout. The PDF includes a line labelled 100 mm. The line is intended to be measured after printing, not by holding a ruler against the screen.
Match the paper size
Use the same size in the exported PDF, the print dialog and the printer tray: A4 or US Letter. A mismatch can trigger automatic resizing. Check orientation too.
Choose Actual size / 100%
In your PDF viewer, use Actual size or a custom scale of 100%. Disable Fit to page and automatic shrinking. In the printer’s own settings, look for scaling or borderless expansion and turn it off. The exact labels depend on your software.
Print one page and measure
Print only the calibration page. Use a physical ruler to measure from one end mark of the 100 mm line to the other. Compare horizontal and vertical marks if available. This project has not yet completed an independent physical printer validation; your check is necessary.
If it is short or long
First recheck both layers of settings: the PDF viewer and the printer driver. Do not immediately change the drawing dimensions to compensate for an unexplained printer setting. If the result remains inconsistent, try another viewer or printer before using the layout.
Verify the assembled project
After the test passes, print all drawing sheets with the same settings. Measure a known feature and a distance that crosses a paper join. Two-point image scaling does not correct an angled photo or paper distortion. Keep the result within the tolerances your craft actually needs.
The examples are original Linefold drawings. Suggested settings are a reproducible layout exercise; physical results depend on your printer and assembly.