gdiff (version 0.2-5)

samePDF: Compare Two PDF Files

Description

Check whether two PDF files have the same content, ignoring some details like creation time and modification time.

Usage

samePDF(file1, file2)

Value

A logical value.

Arguments

file1, file2

Names of PDF files to compare.

Author

Paul Murrell

Details

This function will compare any two files, byte by byte, but if a file is a PDF file that was generated by R, it will discard the file header, which may contain differences that do not matter, such as the creation date.

Examples

f1 <- tempfile(fileext=".pdf")
f2 <- tempfile(fileext=".pdf")
pdf(f1)
plot(1)
dev.off()
pdf(f2)
plot(2)
dev.off()
samePDF(f1, f1)
samePDF(f1, f2)