[poppler] Problem with pdfimages

[Jean-Claude REPETTO]

Adrian Johnson wrote :
> 
> The PDF files do not contain any images (except for the thumbnail 
> images). The scanned image has been converted a vector format by drawing 
> lots of closely spaced parallel lines. You can see this if you zoom in 
> on the page. I assume this is for printing on a pen plotter.
> 
> You can create an image from each PDF page with pdftoppm. After 
> converting to PNG this results in a much smaller and faster to render 
> image but it does lose the shading effects that were created by the 
> hatching.
> 

Hello Adrian,

Thanks for the explanation. Is there a tool I could use to display the 
number of parallel lines and their coordinates ?

Thanks,
Jean-Claude