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pdftocairo(1) General Commands Manual pdftocairo(1)
NAME
pdftocairo - Portable Document Format (PDF) to PNG/JPEG/TIFF/PDF/PS/EPS/SVG using cairo
SYNOPSIS
pdftocairo [options] PDF-file [output-file]
DESCRIPTION
pdftocairo converts Portable Document Format (PDF) files, using the cairo output device of
the poppler PDF library, to any of the following output formats:
o Portable Network Graphics (PNG)
o JPEG Interchange Format (JPEG)
o Tagged Image File Format (TIFF)
o Portable Document Format (PDF)
o PostScript (PS)
o Encapsulated PostScript (EPS)
o Scalable Vector Graphics (SVG)
o Windows Printer
pdftocairo reads the PDF file, PDF-file, and writes to output-file. The image formats
(PNG, JPEG, and TIFF) generate one file per page with the page number and file type ap-
pended to output-file. When -singlefile is used with the image formats, the file type is
appended to output-file. When the output format is a vector format (PDF, PS, EPS, and
SVG), output-file is the full filename.
If the PDF-file is "-" , the PDF is read from stdin. If the output-file is "-" , the out-
put file will be written to stdout. Using stdout is not valid with image formats unless
-singlefile is used. If output-file is not used, the output filename will be derived from
the PDF-file filename.
Not all options are valid with all output formats. One (and only one) of the output format
options (-png, -jpeg, -tiff, -pdf, -print, -ps, -eps, or -svg) must be used.
The resolution options (-r, -rx, -ry) set the resolution of the image output formats. The
image dimensions will depend on the PDF page size and the resolution. For the vector out-
puts, regions of the page that can not be represented natively in the output format (eg
translucency in PS) will be rasterized at the resolution specified by the resolution op-
tions.
The -scale-to options may be used to set a fixed image size. The image resolution will
vary with the page size.
The cropping options (-x, -y, -W, and -H) use units of pixels with the image formats and
PostScript points (1/72 inch) with the vector formats. When cropping is used with vector
output the cropped region is centered unless -nocenter is used in which case the cropped
region is at the top left (SVG) or bottom left (PDF, PS, EPS).
OPTIONS
-png Generates a PNG file(s)
-jpeg Generates a JPEG file(s). See also -jpegopt.
-tiff Generates a TIFF file(s)
-pdf Generates a PDF file
-ps Generate a PS file
-eps Generate an EPS file. An EPS file contains a single image, so if you use this op-
tion with a multi-page PDF file, you must use -f and -l to specify a single page.
The page size options (-origpagesizes, -paper, -paperw, -paperh) can not be used
with this option.
-svg Generate a SVG (Scalable Vector Graphics) file
-print (Windows only) Prints to a system printer. See also -printer and -printeropt.
If an output file is not specified, the output will be sent to the printer.
The output file '-' can not be used with this option.
-printdlg
(Windows only) Prints to a system printer. Displays the print dialog to allow the
print options to be modified before printing.
-f number
Specifies the first page to convert.
-l number
Specifies the last page to convert.
-o Generates only the odd numbered pages.
-e Generates only the even numbered pages.
-singlefile
Writes only the first page and does not add digits.
-r number
Specifies the X and Y resolution, in pixels per inch of image files (or rasterized
regions in vector output). The default is 150 PPI.
-rx number
Specifies the X resolution, in pixels per inch of image files (or rasterized re-
gions in vector output). The default is 150 PPI.
-ry number
Specifies the Y resolution, in pixels per inch of image files (or rasterized re-
gions in vector output). The default is 150 PPI.
-scale-to number
Scales the long side of each page (width for landscape pages, height for portrait
pages) to fit in scale-to pixels. The size of the short side will be determined by
the aspect ratio of the page (PNG/JPEG/TIFF only).
-scale-to-x number
Scales each page horizontally to fit in scale-to-x pixels. If scale-to-y is set to
-1, the vertical size will determined by the aspect ratio of the page
(PNG/JPEG/TIFF only).
-scale-to-y number
Scales each page vertically to fit in scale-to-y pixels. If scale-to-x is set to
-1, the horizontal size will determined by the aspect ratio of the page
(PNG/JPEG/TIFF only).
-x number
Specifies the x-coordinate of the crop area top left corner in pixels (image out-
put) or points (vector output)
-y number
Specifies the y-coordinate of the crop area top left corner in pixels (image out-
put) or points (vector output)
-W number
Specifies the width of crop area in pixels (image output) or points (vector output)
(default is 0)
-H number
Specifies the height of crop area in pixels (image output) or points (vector out-
put) (default is 0)
-sz number
Specifies the size of crop square in pixels (image output) or points (vector out-
put) (sets -W and -H)
-cropbox
Uses the crop box rather than media box when generating the files (PNG/JPEG/TIFF
only)
-mono Generate a monochrome file (PNG and TIFF only).
-gray Generate a grayscale file (PNG, JPEG, and TIFF only).
-antialias
Set the cairo antialias option used for text and drawing in image files (or raster-
ized regions in vector output). The options are:
default
Use the default antialiasing for the target device. This is the default set-
ting if -antialias is not used.
none Antialiasing is disabled.
gray Perform single-color antialiasing using shades of gray.
subpixel
Perform antialiasing by taking advantage of the order of subpixel elements
on devices such as LCD.
fast Hint that the backend should perform some antialiasing but prefer speed over
quality.
good The backend should balance quality against performance.
best Hint that the backend should render at the highest quality, sacrificing
speed if necessary.
-transp
Use a transparent page color instead of white (PNG and TIFF only).
-icc icc-file
Use the specified ICC file as the output profile (PNG only). The profile will be
embedded in the PNG file.
-jpegopt jpeg-options
When used with -jpeg, takes a list of options to control the jpeg compression. See
JPEG OPTIONS for the available options.
-level2
Generate Level 2 PostScript (PS only).
-level3
Generate Level 3 PostScript (PS only). This enables all Level 2 features plus shad-
ing patterns and masked images. This is the default setting.
-origpagesizes
This option is the same as "-paper match".
-paper size
Set the paper size to one of "letter", "legal", "A4", or "A3" (PS,PDF,SVG only).
This can also be set to "match", which will set the paper size of each page to
match the size specified in the PDF file. If none the -paper, -paperw, or -paperh
options are specified the default is to match the paper size.
-paperw size
Set the paper width, in points (PS,PDF,SVG only).
-paperh size
Set the paper height, in points (PS,PDF,SVG only).
-nocrop
By default, printing output is cropped to the CropBox specified in the PDF file.
This option disables cropping (PS,PDF,SVG only).
-expand
Expand PDF pages smaller than the paper to fill the paper (PS,PDF,SVG only). By
default, these pages are not scaled.
-noshrink
Don't scale PDF pages which are larger than the paper (PS,PDF,SVG only). By de-
fault, pages larger than the paper are shrunk to fit.
-nocenter
By default, PDF pages smaller than the paper (after any scaling) are centered on
the paper. This option causes them to be aligned to the lower-left corner of the
paper instead (PS,PDF,SVG only).
-duplex
Adds the %%IncludeFeature: *Duplex DuplexNoTumble DSC comment to the PostScript
file (PS only). This tells the print manager to enable duplexing.
-printer printer-name
(Windows only). When used with -print, specifies the name of the printer to be
used, instead of the system default.
-printopt printer-options
(Windows only). When used with -print, takes a list of options to be used to con-
figure the printer. See WINDOWS PRINTER OPTIONS for the available options.
-setupdlg
(Windows only). When used with -print, the printer properties dialog is displayed
allowing the print settings to be modified before printing. The paper size selected
in the print properties dialog will be used except when -origpagesizes is speci-
fied.
-opw password
Specify the owner password for the PDF file. Providing this will bypass all secu-
rity restrictions.
-upw password
Specify the user password for the PDF file.
-q Don't print any messages or errors.
-v Print copyright and version information.
-h Print usage information. (-help and --help are equivalent.)
EXIT CODES
The poppler tools use the following exit codes:
0 No error.
1 Error opening a PDF file.
2 Error opening an output file.
3 Error related to PDF permissions.
4 Error related to ICC profile.
99 Other error.
JPEG OPTIONS
When JPEG output is specified, the -jpegopt option can be used to control the JPEG com-
pression parameters. It takes a string of the form "<opt>=<val>[,<opt>=<val>]". Currently
the available options are:
quality
Selects the JPEG quality value. The value must be an integer between 0 and 100.
progressive
Select progressive JPEG output. The possible values are "y", "n", indicating pro-
gressive (yes) or non-progressive (no), respectively.
optimize
Sets whether to compute optimal Huffman coding tables for the JPEG output, which
will create smaller files but make an extra pass over the data. The value must be
"y" or "n", with "y" performing optimization, otherwise the default Huffman tables
are used.
WINDOWS PRINTER OPTIONS
In Windows, you can use the -print option to print directly to a system printer. Addition-
ally, you can use the -printopt option to configure the printer. It takes a string of the
form "<opt>=<val>[,<opt>=<val>]". Currently the available options are:
source Selects the source paper tray to be used (bin). The possible values are "upper",
"onlyone", "lower", "middle", "manual", "envelope", "envmanual", "auto", "tractor",
"smallfmt", "largefmt", "largecapacity", "formsource", or a numeric value to choose
a driver specific source.
duplex Sets the duplex mode of the printer. The possible values are "off", "short" or
"long", indicating no duplexing, short-edge binding, or long-edge binding, respec-
tively. General option -duplex is a synonym of "duplex=long". If both options are
specified, -printopt has priority.
AUTHOR
The pdftocairo software and documentation are copyright 1996-2004 Glyph & Cog, LLC and
copyright 2005-2011 The Poppler Developers.
SEE ALSO
pdfdetach(1), pdffonts(1), pdfimages(1), pdfinfo(1), pdftohtml(1), pdftoppm(1),
pdftops(1), pdftotext(1) pdfseparate(1), pdfsig(1), pdfunite(1)
pdftocairo(1)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2026-01-09 06:43 @216.73.216.127 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)