v2.17.4 — duplex cut guides, and copies stop being files

Cutting

Duplex offset now moves the cut guides with the cards. Setting a back offset shifted the back page's cards but left its guides on the front's grid, so they missed the cards by exactly the drift the offset was correcting — the more carefully you dialled the offset in, the more crooked the guides became. Cutting the back by them came out wrong. Back rotation had the same fault.

Cards and guides are now drawn under one transform. Registration marks stay square to the page on purpose: the cutter's sensor hunts for them at a fixed inset.

The preview's Backs view shows the offset and rotation too. It used to draw backs on the unshifted grid, which is why a wrong offset only turned up at the cut. The sheet caption now names the correction in force — backs, mirrored · offset +4/−3 mm — so a crooked preview reads as a crooked setting rather than a broken preview.

Fixed

A crash in the export preview. Whenever registration marks cost a card slot — A4 3×3, anything on Letter — the preview stopped redrawing. Present in every release from 2.16.0 to 2.17.3.

Pasted Gatherer links stop failing on two whole classes of card. Both ended in the same "Could not find a Gatherer image id":

• Gatherer's set codes are not Scryfall's. Urza's Saga is UZ on Gatherer and usg on Scryfall, so a link like UZ/en-us/291/copper-gnomes never resolved — for a card both sites have. Links carry the card's name too, and that is the part they agree on, so it is now the fallback lookup. The Gatherer image still comes from Gatherer.
• Secret Lairs, promos and foils have no Gatherer entry at all. The decklist import already fell back to the Scryfall image; a link pasted straight into the box still failed. Now it falls back the same way.

A link fails only when neither site recognises the card.

Copies

A copy of a card is no longer a file on disk. Quantity wrote one PNG per copy, so a 4-of left four identical images in the output folder, and Duplicate in the preview wrote another every time you used it. Copies are now just copies: the sheet prints the same image as many times as you asked, and your output folder stays clean.

Reordering, removing and assigning a back still act on the single copy you clicked. Deleting a card's file now removes every copy of it from the sheet, and tells you how many before asking.

Note: black-border treatment is now per image rather than per copy. That was always true of the exported PDF — the preview just let you believe otherwise.

Printing

New FAQ entry for "insufficient memory" printer errors, reported with a Brother 3240 CDW. A 1200 DPI sheet is around 217 MB and that printer has 128 MB to rasterise it in. The fix is Adobe Reader's Print as Image — and set its resolution dropdown to 600 or 1200, because it defaults to 300 and would throw away the resolution you came here for.