Quickest way to create a PNG from a PDF
Posted: 2010-01-12T04:49:53-07:00
I have some print-quality PDFs that I need to convert to PNGs for display purposes. "identify" reports one of them, for example, as:
test.pdf PDF 13824x2592 13824x2592+0+0 DirectClass 16-bit 102.516mb 3.870u 0:05
Using "convert" to resize this to a PNG takes a long time (around 20s):
convert test.pdf -resize 1024x768 test.png
Does anyone have any hints for speeding this up?
Note that the PDF is quite a small file (13k) comprising vector content, so in theory it could be shrunk to a much smaller size (retaining it's vector nature first) before converting to a PNG, although I'd have no idea how to go about doing that.
test.pdf PDF 13824x2592 13824x2592+0+0 DirectClass 16-bit 102.516mb 3.870u 0:05
Using "convert" to resize this to a PNG takes a long time (around 20s):
convert test.pdf -resize 1024x768 test.png
Does anyone have any hints for speeding this up?
Note that the PDF is quite a small file (13k) comprising vector content, so in theory it could be shrunk to a much smaller size (retaining it's vector nature first) before converting to a PNG, although I'd have no idea how to go about doing that.