Using Adobe Acrobat 9 in command line to covert from pdf to png using export function

Question

I am trying to use the command line to convert a pdf to png using the export function of adobe acrobat 9. Anyone know how to do this?

A program I am writing in Java will need to run this command.

Thanks for the help.

Answer 1

Other than this paltry detail, there's no documentation on Acrobat's command line... if there's anything more to document.

I suggest you go with Ghostscript instead. They actually document their command line and are Free.

The commandline would be something like:

gs -o -q -sOutputFile=MyOutPath.png -sDevice=png16m -r300 inputPdf.pdf

• -o puts it in batch mode (mostly)
• -q quite mode (no std out)
• -sOutputFile self explanatory
• -sDevice=png16m 24-bit rgb. alternatives include pngalpha, png8, pngmono, png256.
• -r300 300 dpi.

I also use:

• -dTextAlphaBits=4 antialiasing info for improved text quality
• -dGraphicsAlphaBits=4 ditto, only for line art.

These two vastly improved the quality of my output (I use jpeg, not png) at the DPI I use. If no one's going to zoom in on them, 72 or 96 is fine... but folks will zoom in on my images, so I ramped up the dots per inch a bit.

Answer 2

在java中，你必须使用命令行功能打开adobe acrobat，然后在awt包中使用Java的Robot功能来模拟击键转到导出功能并转换为PNG。