Scanning / TWAIN components

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Revision as of 01:18, 22 December 2008 by Wil (talk | contribs) (New page: === Scanning / TWAIN components === I've just spend a couple of days evaluating scanning ActiveX objects and here are my summary notes; The requirements were: - Scanning fully controllab...)
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Scanning / TWAIN components

I've just spend a couple of days evaluating scanning ActiveX objects and here are my summary notes;

The requirements were: - Scanning fully controllable from VDF, no sticking progress windows etc. - Save as a small compressed PDF 300dpi B/W

Viscom Scanner - PDF has no compression so large files - Constants were not enumerated in generated class - TWAIN window cannot be closed by VDF, so user must press cancel on 'foreign' dialog on completion + Cheap

Acrobat 8 Automation + Best compression + Also does background OCR and makes PDF searchable (the text highlites the corresponding bitmap text) + Nice continue dialog when Automatic document feeder runs out of paper - Automation is NOT provided for scanning... - Expensive

GdTwain Pro + Small PDF ± Lots and lots of functionality; a bit daunting

DynamicWebTwain + Very small PDF + Several good simple examples, in easy to understand VB.Net + Good enumerated values + Personal email is send soon after download if you require support + Only Developer edition required. Fee distribution for Desktop applications

So, perhaps needless to say, we chosen for Dynamic Web Twain.

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