Cut

Cut

Fine-grained custom page cutting: apply any number of horizontal and vertical cuts to selected pages, writing one PDF per resulting tile.

Command line

pdfcpu2 cut [-p pageSelection] description inFile outDir [outFile]

<description> — comma-separated:

Entry	Meaning
hor: <f1> <f2> …	horizontal cuts at height fractions (origin: top left)
vert: / ver:	vertical cuts at width fractions
margin:	margin / glue area (display units)
bgcol:	color for margin visualization
border:	draw content region border (with margin)

pdfcpu2 cut 'hor:.25' in.pdf outDir                     # 2 pages
pdfcpu2 cut 'hor:.25, vert:.75' in.pdf outDir           # one H + one V cut
pdfcpu2 cut 'hor:.33 .66' in.pdf outDir                 # == ndown 3
pdfcpu2 cut 'hor:.5, ver:.5' in.pdf outDir              # == ndown 4
cat poster.pdf | pdfcpu2 cut 'hor:.5, ver:.5' - /work/tiles

Go API

package main

import (
	"context"

	"github.com/huzpsb/pdfcpu2/pkg/api"
	"github.com/huzpsb/pdfcpu2/pkg/pdfcpu/model"
)

func main() {
	ctx := context.Background()
	conf := model.NewDefaultConfiguration()

	cut := &model.Cut{
		Hor:  []float64{0.5},
		Vert: []float64{0.5},
	}

	err := api.CutFile(ctx, "in.pdf", "./tiles", "", nil, cut, conf)
	if err != nil {
		panic(err)
	}
}

Related: N-Down (symmetric cuts), Poster (scale up, then tile).