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cyanfish / naps2

Scan documents to PDF and more, as simply as possible.
https://www.naps2.com
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windows driver twain Scanning with Duplex and A3 pagesize incorret #379

Closed hfbi360 closed 5 months ago

hfbi360 commented 5 months ago

Describe the bug Scanning with "Paper source" set to "Duplex" and with "Page size" set to "A3" and twain scan image pagesize incorrect, but with wia is correct.

when I use Naps2.Console.exe --driver twain --device "PaperStream IP fi-7460 #3 " --source "duplex" --pagesize A3 , it scan the page like A4 size but use --driver wia the page size is correct.

Expected behavior use driver twain scan A3 duplex can output correct image like use driver wia.

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cyanfish commented 5 months ago

Sounds like a bug in the PaperStream TWAIN driver, there isn't much I can do about that other than suggest looking for updated drivers.

hfbi360 commented 5 months ago

but I use the C++ twain lib it can scan A3 right with the same PaperStream TWAIN driver。 It's a bit similar to this question #281