[softwarelist] Re: PNG in DPscan

In message <e123bb644f.Dave@xxxxxxxxxxxxxxxxxxxxxxxx>, Dave Barnett <dave@xxxxxxxxxxxxxxxxx> writes 
I have been using NetSurf to save PNG images from Google Books.  Most
of these are pages of text of varying size, which as far as I can tell
is the only difference (apart from content).   Some of these display
OK in DPScan v1.24 on RO 4.29, but others crash with "...internal
error type = 2", all display OK (of course) in NetSurf (28 Dec 2007).
This means that, with those that crash, I can't do anything with them
apart from copy using the filer.


Could you send me an example by private email?
A type 2 error is a divide by zero, what often happens is that programs set image resolutions (dpi) to zero, they do this in the belief it stands for "default". It means no such thing, but then again I should trap any divide by zero errors anyway. 

That is one possibility.
ISTR there are some memory issues with DPScan and PNG files, all you can do is increase the wimp slot set in the !Run file.
Presumably you could use the files with another program e.g. ChangeFSI etc. 


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David Pilling
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