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Booklet creep worksheet

Give prepress operators per-sheet page shifts for a folded booklet signature.

This tool is archived. Recheck its method and dated data before use.

01Enter your values

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Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy. Sheets are numbered outside to inside. Divide total creep by sheets minus one; each page receives half its sheet’s shift. Negative shifts go toward the spine, positive shifts away.

Example

How it works

Give prepress operators per-sheet page shifts for a folded booklet signature.

Δ = c/(N−1); c < 0: xᵢ = (i−1)Δ/2; c ≥ 0: xᵢ = (N−i)Δ/2

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Inputs are processed on this page and are never sent to a server.

About this tool

Give prepress operators per-sheet page shifts for a folded booklet signature.

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy. Sheets are numbered outside to inside. Divide total creep by sheets minus one; each page receives half its sheet’s shift. Negative shifts go toward the spine, positive shifts away.

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How to use it
  1. Enter your values
    • Length unit
    • Sheets in one signature
    • Signed total spread creep
  2. Calculation method

    Δ = c/(N−1); c < 0: xᵢ = (i−1)Δ/2; c ≥ 0: xᵢ = (N−i)Δ/2

  3. Example scenario · Result

    Maximum shift per page: 12 pt

Calculation method

  1. Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy.
  2. Sheets are numbered outside to inside.
  3. Divide total creep by sheets minus one; each page receives half its sheet’s shift.
  4. Negative shifts go toward the spine, positive shifts away.
Δ = c/(N−1); c < 0: xᵢ = (i−1)Δ/2; c ≥ 0: xᵢ = (N−i)Δ/2
Example scenario

Booklet creep worksheet

Length unit
pt
Sheets in one signature
4
Signed total spread creep
-24
Result
Maximum shift per page: 12 pt

Frequently asked questions

Does it infer creep from paper weight?

No. Measure and proof it. This follows the InDesign two-up convention: negative creep fixes the outer sheet, positive creep fixes the inner sheet. It does not impose or edit a PDF.

Where does my data go?

Calculations run on your device. Form inputs are not sent to a server.

Terms and definitions

Enter your values

Measurement system

The initial choice follows your browser region. Your choice is remembered on this device. Gallons are US gallons. Switching units keeps your numbers unchanged and interprets them in the new unit.

Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.

Length unit

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy.

Choose the mode that matches the data you entered.

Options: mm · in · pt

Sheets in one signature

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy.

Enter a whole number; fractional counts are not valid.

Minimum: 1 · Maximum: 500

Signed total spread creep

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy.

Enter a numerical value for this quantity. Use the unit shown beside this field. mm / in

Minimum: -1000 · Maximum: 1000 mm

Result

Result

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy. Sheets are numbered outside to inside. Divide total creep by sheets minus one; each page receives half its sheet’s shift. Negative shifts go toward the spine, positive shifts away.

Calculated from your entries using the method below.

Spread increment per sheet

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy.

Calculated from your entries using the method below.

Pages in signature

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy.

Calculated from your entries using the method below.

Fixed sheet

Enter sheets in one nested signature, a unit and the signed total spread creep established from a physical dummy.

Calculated from your entries using the method below.

Sheet (outside → inside)

Sheets are numbered outside to inside.

Calculated from your entries using the method below.

Page shift (− toward spine, + away) (pt)

Negative shifts go toward the spine, positive shifts away.

Calculated from your entries using the method below.

Page shift (− toward spine, + away) (mm)

Negative shifts go toward the spine, positive shifts away.

Calculated from your entries using the method below.

Page shift (− toward spine, + away) (in)

Negative shifts go toward the spine, positive shifts away.

Calculated from your entries using the method below.

Common mistakes and quick fixes

Signed total spread creep

Mistake: Changing units and assuming the entered numbers were converted.

Fix: Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.

Does it infer creep from paper weight?

Mistake: Treating a result as valid outside the described scope.

Fix: No. Measure and proof it. This follows the InDesign two-up convention: negative creep fixes the outer sheet, positive creep fixes the inner sheet. It does not impose or edit a PDF.

Limits and key assumptions

  • No. Measure and proof it. This follows the InDesign two-up convention: negative creep fixes the outer sheet, positive creep fixes the inner sheet. It does not impose or edit a PDF.
  • Displayed results may be rounded; rounding does not add measurement precision.