07-04-2014
I would like to change DPI only not Dimensions.Please help me.
Thanks in advance
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LEARN ABOUT DEBIAN
pdftoppm
pdftoppm(1) General Commands Manual pdftoppm(1)
NAME
pdftoppm - Portable Document Format (PDF) to Portable Pixmap (PPM) converter (version 3.00)
SYNOPSIS
pdftoppm [options] PDF-file PPM-root
DESCRIPTION
Pdftoppm converts Portable Document Format (PDF) files to color image files in Portable Pixmap (PPM) format, grayscale image files in Por-
table Graymap (PGM) format, or monochrome image files in Portable Bitmap (PBM) format.
Pdftoppm reads the PDF file, PDF-file, and writes one PPM file for each page, PPM-root-number.ppm, where number is the page number.
OPTIONS
-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 DPI. The default is 150 DPI.
-rx number
Specifies the X resolution, in DPI. The default is 150 DPI.
-ry number
Specifies the Y resolution, in DPI. The default is 150 DPI.
-scale-to number
Scales each page to fit in scale-to*scale-to pixel box.
-scale-to-x number
Scales each page horizontally to fit in scale-to-x pixels.
-scale-to-y number
Scales each page vertically to fit in scale-to-y pixels.
-x number
Specifies the x-coordinate of the crop area top left corner
-y number
Specifies the y-coordinate of the crop area top left corner
-W number
Specifies the width of crop area in pixels (default is 0)
-H number
Specifies the height of crop area in pixels (default is 0)
-sz number
Specifies the size of crop square in pixels (sets W and H)
-cropbox
Uses the crop box rather than media box when generating the files
-mono Generate a monochrome PBM file (instead of a color PPM file).
-gray Generate a grayscale PGM file (instead of a color PPM file).
-png Generates a PNG file instead a PPM file.
-jpeg Generates a JPEG file instead a PPM file.
-tiff Generates a TIFF file instead a PPM file.
-tiffcompression none | packbits | jpeg | lzw | deflate
Specifies the TIFF compression type. This defaults to "none".
-freetype yes | no
Enable or disable FreeType (a TrueType / Type 1 font rasterizer). This defaults to "yes".
-aa yes | no
Enable or disable font anti-aliasing. This defaults to "yes".
-aaVector yes | no
Enable or disable vector anti-aliasing. This defaults to "yes".
-opw password
Specify the owner password for the PDF file. Providing this will bypass all security 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 Xpdf 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.
99 Other error.
AUTHOR
The pdftoppm software and documentation are copyright 1996-2004 Glyph & Cog, LLC.
SEE ALSO
pdffonts(1), pdfimages(1), pdfinfo(1), pdftocairo(1), pdftohtml(1), pdftops(1), pdftotext(1)
22 January 2004 pdftoppm(1)