| Version: | 0.1-3 |
| Title: | PDF Tools Based on Poppler |
| Description: | PDF tools based on the Poppler PDF rendering library. See http://poppler.freedesktop.org/ for more information on Poppler. |
| License: | GPL-2 |
| SystemRequirements: | Poppler Glib interface headers and libraries (<http://poppler.freedesktop.org/>) [Debian/Ubuntu: libpoppler-glib-dev, Fedora: poppler-glib-devel] |
| NeedsCompilation: | yes |
| Packaged: | 2024-08-13 11:10:12 UTC; hornik |
| Author: | Kurt Hornik  [aut,
cre] |
| Maintainer: | Kurt Hornik <Kurt.Hornik@R-project.org> |
| Repository: | CRAN |
| Date/Publication: | 2024-08-13 11:13:31 UTC |
PDF document reference
Description
Create a reference to a Portable Document Format (PDF) file for use in subsequent information extraction from the file.
Usage
PDF_doc(file)
Arguments
file |
A character string giving the path to a PDF file. |
Value
A reference to a PDF file (external pointer object).
Examples
file <- system.file(file.path("doc", "Sweave.pdf"), package = "utils")
doc <- PDF_doc(file)
## Can now use the reference for information extraction, avoiding
## the creation of new PopplerDocument objects when doing so.
PDF_info(doc)
PDF_fonts(doc)
PDF font information
Description
Obtain the fonts used in a Portable Document Format (PDF) file and further information about these fonts.
Usage
PDF_fonts(file)
Arguments
file |
A character string giving the path to a PDF file, or an
object of class |
Value
A data frame inheriting from PDF_fonts (which has a useful
print method), with the following variables:
name |
the full name of the font (character) |
type |
the font type (Type 1, Type 3, etc.; character) |
file |
the file name of the font (character; empty if the font is embedded) |
emb |
whether the font is embedded in the PDF file or not (logical) |
sub |
whether the font is a subset of another font (logical) |
Examples
file <- system.file(file.path("doc", "Sweave.pdf"), package = "utils")
PDF_fonts(file)
PDF document information
Description
Extract document information from a Portable Document Format (PDF) file.
Usage
PDF_info(file)
Arguments
file |
A character string giving the path to a PDF file, or an
object of class |
Value
An object of class PDF_info (which has useful format and print
methods), containing the information in the PDF Info dictionary
(title, subject, keywords, author, creator, producer, creation date,
modification date) as well as the number of pages and the page sizes,
whether the document is optimized (linearized), and the PDF version it
uses.
Examples
file <- system.file(file.path("doc", "Sweave.pdf"), package = "utils")
PDF_info(file)
PDF text extraction
Description
Extract text from a Portable Document Format (PDF) file.
Usage
PDF_text(file)
Arguments
file |
A character string giving the path to a PDF file, or an
object of class |
Value
A character vector with the extracted texts for each page.
Examples
file <- system.file(file.path("doc", "Sweave.pdf"), package = "utils")
PDF_text(file)