pdimg_meta: pdimg_meta

In sckott/pdfimager: Extract images from pdfs

pdimg_meta

Description

extract metadata on images in a pdf

Usage

pdimg_meta(paths, ...)

Arguments

paths	(character) path to a pdf, required
...	additional params passed on to pdfimages. See pdimg_help() for docs

Value

data.frames of metadata on images in the pdf. if the path is not found or the path is found but no images are found, then a warning is thrown and a zero row data.frame is returned

Examples

# images found
x <- system.file("examples/BachmanEtal2020.pdf", package="pdfimager")
pdimg_meta(x)
z <- system.file("examples/Tierney2017JOSS.pdf", package="pdfimager")
pdimg_meta(z)

# many at once
pdimg_meta(c(x, z))

# no images found, but there are actually images 
d <- system.file("examples/LahtiEtal2017.pdf", package="pdfimager")
pdimg_meta(d)

# no images found, and there really are no images
w <- system.file("examples/White2015.pdf", package="pdfimager")
pdimg_meta(w)

# path not found
pdimg_meta("foo-bar")

# only detects overlayed smaller images on plots, doesn't detect plots
g <- system.file("examples/vanGemert2018.pdf", package="pdfimager")
pdimg_meta(g)

sckott/pdfimager documentation built on Sept. 15, 2024, 1:19 a.m.