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Converting native PDF to image

Posted: 2013-11-12T23:51:14-07:00
by weesiong

I am trying to convert a PDF file with user signed electronic signature using signing pad in it to a image format PDF extension file,
The reason is that the existing batch program ( which I have not control over) is unable to process the electronics signature in the native PDF

The command I used -
convert -density 300 input.pdf output.pdf

The issue is after the conversion , the signature portion looks very bad , even I when I am setting a density of 300
which is already taking a lot of processing time and disk space

Any advise how to overcome this ? e.g what parameter to use , etc

Re: Converting native PDF to image

Posted: 2013-11-13T00:37:13-07:00
by snibgo
I don't understand why you want to create a PDF from another PDF.

What does "very bad" mean?

Is the input multi-page with the signature on only one?

Can you put the PDF somewhere like and paste the URL here?

Re: Converting native PDF to image

Posted: 2013-11-13T08:37:10-07:00
by whugemann
Are you sure that the signature is a raster image in the original document? It could also be a vector format, say a glyph in a dedicated font file containing the signatures of all employees. This would cause detoriation when being converted to a raster image.