Digital lab
Imposició de díptics, tríptics i quadríptics. Reorganitza les pàgines segons el plegat i genera el full imposat per a premsa.
D'esquerra a dreta del full obert. El PDF ha de tenir 2 pàgines (cara/dors) o bé (pales×2) pàgines individuals.
Identifying text printed at the foot of each imposed sheet. Useful for job tracking in the pressroom. If left blank, the PDF filename is used.
The physical sheet fed into the press. Must be large enough to hold all cards plus the marks margin. For A7 cards, A4 or SRA4 usually works well.
Strip around the printable area reserved for production marks. Typically 10–15 mm. Must be wide enough to fit the marks without overlapping the cards.
Space between adjacent leaflets on the sheet. At 0 mm leaflets touch. A positive value gives each leaflet its own cut space.
Short lines at the four corners of each card indicating where to cut. Essential for the final guillotining.
Cross-in-circle symbols on all four margins. They allow the four colour layers (C, M, Y, K) to be aligned in offset printing.
Show how far the bleed extends beyond the trim line to avoid white edges. Only visible if the source PDF includes bleed (TrimBox ≠ MediaBox).
A strip of colour patches and grey scales on the sheet margin. The press operator reads them with a densitometer to adjust ink density.
Bleed is detected automatically from the PDF BleedBox/TrimBox.
Blue dashed lines indicating where the leaflet should be folded. Essential when delivering flat sheets to be folded manually or by machine.
Doubles the gap between leaflets so each has its own independent cut space. Useful when guillotining precision is limited.
Fold marks show where the leaflet should be folded, as blue dashed lines.
Automatically rotates leaflets 90° if more fit on the sheet that way.
Defines how the printer flips the sheet to print the reverse. Long edge: flips on the vertical axis, the back is mirrored left-right; typical for portrait printing. Short edge: flips on the horizontal axis, the back is mirrored top-bottom; typical for landscape or booklet printing.
Sheetwise: front and back in separate files or press passes. Work-and-turn: all content on one plate; print half the run, flip the sheet on its side (vertical axis) and reprint the same plate → 2 copies/sheet. Work-and-tumble: same but flipping on the short edge (horizontal axis).
If front and back are misaligned on the press, adjust these values in mm.
Horizontal correction of the back content to compensate for mechanical press registration. Positive = shift right. Typically between −1 and +1 mm.
Vertical correction of the back content. Positive = shift down.
Reserve a strip at the feed edge where the press grips the sheet. No content will be printed inside this zone.
The gripper is the mechanical clamp that feeds the sheet into the press. The gripper edge is not available for printing. On large-format presses (B2, B1), the gripper is usually the top edge.
The distance the press needs to grip the sheet reliably. On large-format presses, typically 10–15 mm. Shown as a dashed red line in the output PDF.
Fit: leaflets are scaled up or down to fill exactly the available space. Reduce only: scaled down if too large, but never enlarged. No scaling: 1:1 natural size; error if it does not fit.
The file is automatically deleted after imposition.
