Tiled Print (PDF)

A tiled print puts a drawing at full size (100%) on ordinary sheets of paper — A4, A3, Letter, Legal or Tabloid — to trim and tape together: a sewing or leather pattern, a pipe wrap-around template, a stone or worktop template, any drawing bigger than your printer's paper. Make one with File › Export › Export Tiled Print…, or with File › Export › Export…, choosing Tiled Print PDF. It is offered for every drawing.

What it writes

A page for each part of the drawing, in a grid: each page shows the drawing through a window (the paper less its margin), and repeats the overlap of the page to its right and of the page below it.
Each page's label, at its top left: A1 is the top left page, B1 the one to its right, A2 the one below. The labels of the pages around it are written in its margins, beside the edges they join, and the PDF's page labels are the same (a viewer shows A1, B1 … instead of page numbers).
Lines and crosses to put it together: each page's window is outlined; the dashed lines show where the next page's edges go; the crosses at the corners fall on the same crosses of the pages next to it.
A cover page first (unless you turn it off): the test square (10 cm or 4 in), how to print and put the pages together, the grid's size, and a map of the drawing with each page's place and label.
Pages the drawing doesn't reach are left out (unless you choose otherwise); the others keep their labels.
The marks are on a PDF layer of their own, Tiling marks, so you can hide them. The drawing's own layers are PDF layers too.

Options

Option	Does
Paper size	A4, A3, Letter, Legal or Tabloid (A4 for a millimetre drawing, Letter for an inch one, to start with).
Orientation	Portrait, landscape, or whichever takes fewer pages.
Margin	Left blank round each page, for the printer (most can't print to the edge) and the labels: 10 mm.
Overlap	How much of the drawing each page repeats of the next: 10 mm.
Pages	How many pages across and down the drawing takes, as you change the others.
Cover page, Test square	The cover page, and its square 10 cm or 4 in across.
Leave out empty pages	Pages the drawing doesn't reach aren't printed.
Text as outlines	Text drawn as its letters' outlines.

The SaaS API writes it too (POST /export/tiledpdf), its paper size, orientation and overlap set by the tilePaper, tileOrientation and tileOverlap options.

Printing and putting it together

Print at 100% or Actual size: turn off Fit to page, Shrink oversized pages and any other scaling. The PDF asks viewers to print at actual size, but check your print dialog.
Measure the test square. If it isn't 10 cm (or 4 in) across, the printer scaled it: fix the setting and print again.
Lay the pages out by their labels. Trim each page along the left and top lines of its window (A1 needs no trimming), lay it over the page to its left (and the one above) so the crosses meet, and tape.