Zoom

Zoom in/out of selected pages either by magnification factor or corresponding margin.
Optionally when zooming out draw a border around content and/or fill unused page space with some background color.

Have a look at some examples.

Usage

pdfcpu zoom [-p(ages) selectedPages] -- description inFile [outFile]

Flags

name	description	required
p(ages)	selected pages	no

Common Flags

name	description	values
v(erbose)	turn on logging
vv	verbose logging
q(uiet)	quiet mode
u(nit)	display unit	po(ints),in(ches),cm,mm
c(onf)	config dir	$path, disable
upw	user password
opw	owner password

Arguments

name	description	required
description	configuration string	yes
inFile	PDF input file	yes
outFile	PDF output file	no

factor, hmargin, vmargin, border, bgcolor

Description

A configuration string with input parameters for the zoom command.

parameter	values
factor	0.0 < x < 1.0 or x > 1.0
hmargin	x < 0 for zooming in, x > 0 for zooming out
vmargin	x < 0 for zooming in, x > 0 for zooming out
border	true/false, t/f
bgcolor	color

Zoom in and out of page content by some factor.

Zooming out results in some horizontal and vertical margins implied by unused page content space. Usually these will not be equal.

Another way to look at zooming is eg. I’d like to zoom out a little in order to create some desired horizontal or vertical margin.

Examples

Given in.pdf:

Zoom in by factor.

$ pdfcpu zoom -- "factor: 2"  in.pdf out.pdf

Zoom out by factor.

$ pdfcpu zoom -- "factor: .5"  in.pdf out.pdf

Zoom out by horizontal margin of 10 points.

$ pdfcpu zoom -- "hmargin: -10" in.pdf out.pdf

Zoom out by vertical margin of 1 inch. Draw border around content and fill background light gray.

$ pdfcpu zoom -unit inch -- "vmargin: 1, border:true, bgcolor:lightgray" in.pdf out.pdf