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Imposer Documentation

This page documents every Imposer panel using the current implementation, so settings descriptions match behavior in the app. Last updated 2026-07-11.

Imposer Panels

1. Choose file(s)

This panel controls source loading, file mode, and source metadata overrides.

  1. Mode: Single file or Batch files. Batch requires a Plus or Studio plan.
  2. Accepted uploads: PDF and image files in single mode. Batch mode also supports ZIP uploads.
  3. File count limits: Up to 40 files at a time in batch mode. For larger batches, upload a ZIP file containing up to 200 supported files.
  4. Upload feedback: progress bar, uploaded filename, and clear action.
  5. Detected source info: page count, TrimBox or CropBox dimensions, and bleed detection.
  6. Trim override: custom trim width and height can replace detected trim dimensions.
  7. Source rotation: rotate input pages by 0, 90, 180, or 270 degrees before imposition.
Imposer choose file panel 1 2 3 4 5 6 7
Choose file(s) panel.

2. Sheet size

Defines the final press sheet dimensions used by the layout engine.

  1. Preset selector: choose from standard paper presets or custom size.
  2. Custom dimensions: sheet height and width in the active unit system.
  3. Swap control: quickly flip width and height for portrait or landscape orientation.
  4. Auto-grid impact: changing sheet size can trigger recalculation when auto layout is enabled.
Imposer sheet size panel 1 2 3 4
Sheet size panel.

3. Layout

Controls page ordering model, front/back behavior, and grid strategy.

  1. Layout mode: Sequential, StepAndRepeat, CutInStack, Booklet, BookletNUp, BestFitLongEdge, or Sparrow Nest. Sparrow Nest supports rotation presets, quality levels (Fast/Balanced/Best), and falls back to trim-rectangle nesting when CutContour is missing.
  2. Best Fit options: when BestFitLongEdge is selected, choose auto-fit, edge-to-edge, or fixed rows/columns with optional scaling and gutter behavior.
  3. Sides: Single, DoubleDiff, or DoubleMirror, depending on selected mode. Double-sided modes are available for Sequential, StepAndRepeat, and Booklet workflows.
  4. Flip edge / back orientation: LongEdge or ShortEdge. ShortEdge duplex uses a head-to-foot tumble. The UI normalizes the setting against the sheet orientation.
  5. Grid controls: auto layout plus manual rows and columns for non-booklet modes.
  6. Booklet constraint: Booklet mode is fixed to 1 row by 2 columns. BookletNUp uses a user-defined grid and supports creep compensation.
Imposer layout panel 1 2 3 4 5 6
Layout panel.

4. Margins, Gutters & Bleed

Defines printable geometry and bleed handling per sheet.

  1. Sheet margins: top, bottom, left, and right margin controls.
  2. Gutters: horizontal and vertical spacing between imposed cells.
  3. Gutter link button: lock or unlock horizontal and vertical gutters.
  4. Include bleed: uses source bleed area when available.
  5. Bleed cap: max-per-side setting limits applied bleed; zero means no cap.
  6. Synthetic bleed: if source has no effective bleed, you can add bleed per side.
  7. Scale to fit: choose Proportional, Fill, or Stretch fitting behavior.
  8. Manual cell size: optional explicit target width and height for scaling.
Imposer margins gutters bleed panel 1 2 3 4 5 6 7 8
Margins, Gutters and Bleed panel.

5A. Marks: Crop Marks

Crop mark controls for trim guidance.

  1. Enable crop marks: toggles crop marks on imposed output. Default is on.
  2. Length: physical size of crop mark segments. Default is 0.25".
  3. Offset: distance from the trim edge. Default is 0.0625" (1/16").
  4. Line width: stroke thickness in points. Default is 0.25 pt.
  5. Best Fit edge-to-edge note: crop marks are disabled in edge-to-edge best fit mode.
Imposer crop marks panel 1 2 3 4 5
Crop marks section in Marks panel.

5B. Marks: Fold Marks

Fold guidance for folded products and signatures.

  1. Enable fold marks: toggles fold guide marks.
  2. Fold type: HalfFold, TriFold, ZFold, GateFold, Accordion4, RollFold4, Accordion6, or Custom. Custom uses the current row or column count to divide the panel evenly.
  3. Direction: Vertical or Horizontal fold direction.
  4. Edge: both or single-edge placement depending on orientation.
  5. Style: solid or dashed fold mark rendering.
  6. Length, offset, line width: geometric and stroke controls for mark appearance.
  7. Booklet and Booklet N-up: creep compensation appears for booklet workflows.
Imposer fold marks panel 1 2 3 4 5 6 7
Fold marks section in Marks panel.

5C. Marks: Perforation Marks

Perforation line guidance at configurable positions.

  1. Enable perforation marks: toggles perforation mark rendering.
  2. Add or remove marks: dynamically manage the count of perf positions.
  3. Position values: each value is a distance from the trim-box left edge in active units (or from the trim-box top edge when Orientation is Horizontal).
  4. Orientation: Vertical or Horizontal perforation direction.
Imposer perforation marks panel 1 2 3 4
Perforation marks section in Marks panel.

5D. Marks: Table Cutter Marks

Registration marks and table cutter integration controls.

  1. Enable table cutter marks: adds registration marks and enables cut-file generation.
  2. Preset: CAMERA_DOT_5 (Camera Dots), LASER_SQUARE_RECT_2 (Laser Square + Rectangle), or DUPLO_BAR (Duplo registration mark + barcode).
  3. Shape override: for non-laser, non-Duplo presets, choose Auto, Dot, Crosshair, or Bullseye.
  4. Size and count: dot diameter and count for dot presets; mark size and line width for laser presets; line length and thickness for Duplo.
  5. Placement geometry: X and Y margin controls. For Duplo, edge distance clamps to 4–16 mm and the mark, barcode, and number are placed at the top-right corner.
  6. Ink values: CMYK percentage inputs with live swatch preview. Not used for Duplo.
  7. Safety constraints: margin-band requirement, non-margin fallback option, art clearance, and minimum inter-mark spacing.
  8. Duplo barcode: numeric value, Code39 or Code128 font, and Horizontal or Vertical (90° CCW) orientation. The value is wrapped in start/stop characters when rendered.
Imposer table cutter marks panel 1 2 3 4 5 6 7 8
Table cutter section in Marks panel.

6. Sheet Annotation

Adds non-cutting production metadata to the sheet.

  1. Slug line or job info: custom text plus optional filename, date, and sheet number tokens. Filename is taken from the optional job name if one is set, otherwise from the uploaded source name.
  2. Slug placement: Top, Bottom, TopLeft, TopRight, BottomLeft, BottomRight, LeftVertical, or RightVertical.
  3. Slug offsets: X and Y offsets for exact placement. Offsets push the slug away from the nominal edge position and are clamped to the printable sheet area.
  4. Color bar: optional CMYK density strip with height, position, and offsets. Renders process-color patches plus a 10%–100% black ramp.
  5. Work method label: WorkAndTurn, WorkAndTumble, or Perfector labeling, rendered with human-readable descriptions.
Imposer sheet annotation panel 1 2 3 4 5
Sheet Annotation panel.

Preset Template panel

The right-column preset panel speeds setup and supports reusable shop standards.

  1. Template source: built-in templates and user-saved presets.
  2. Scope filtering: only templates compatible with the current file mode are shown.
  3. Create preset: save current settings as a named preset.
  4. Manage preset: clear or delete selected user presets.
  5. Plan behavior: this panel is locked on the Free plan. It is unlocked on Pro, Plus, and Studio plans.
Imposer preset template panel 1 2 3 4 5
Preset Template panel.

Layout preview panel

The preview renders a vector simulation of the current settings before generating final output.

  1. Live preview: updates as settings change, including marks and annotation options.
  2. Busy overlay: shows a loading state while preview assets update.
  3. Geometry validation: helps verify fit, gutters, bleed behavior, and mark placement before running.
Imposer layout preview panel 1 2 3
Layout preview panel.

Output and run panel

The bottom action area controls execution and default persistence.

  1. Job name: optional base name used for the downloaded file and for slug-line filename tokens.
  2. Run Imposition: builds the imposed PDF from current settings. This is the only run button currently visible in the UI.
  3. Status messages: success and error feedback appears directly below settings.
  4. Save Default Settings: stores the current configuration as personal defaults.
  5. Reset to Default: restores saved defaults.
  6. Authentication behavior: sign-in is required before file download.
  7. Plan watermark behavior: Free plan output is automatically watermarked with Impozly.com. The watermark toggle is not user-visible; it is forced on Free and disabled on paid plans.
Imposer output and run panel 1 2 3 4 5 6 7
Output and run controls.
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