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Sets the job control option when acquiring to a multipage image file. The device's TWAIN driver must support job control.
The job control option allows devices to use the feature of separating multipage acquisitions from a device into different jobs or "batches". This is usually done by a job control page or "patch sheet" (there may be other ways of separating a batch of pages). When invoked, each job is saved to a separate multipage image file.
The value parameter must be one of the following:
When a job control page is encountered, the current multipage image file that is being created is saved, and a new multipage image file will be created to start the next job.
Generate multipage PDF files.
Jobs are separated by a patch page.
Patch page exists on every third page to separate the jobs:
Do not include patch page in the PDF file.
Name the files according to the smart auto-increment feature (-useinc)
Assume there are a total of 10 pages in the scanner's document feeder, including the patch pages:
twainsave -f test0001.pdf -multipage -filetype pdf -jobcontrol 2 -useinc
If successful, four multipage PDF files will be created:
test0001.pdf (2 pages -- pages 1, 2 )
test0002.pdf (2 pages -- pages 4, 5)
test0003.pdf (2 pages -- pages 7, 8)
test0004.pdf (1 page -- page 10)
Note that pages 3, 6, and 9 are not stored, since these were patch (job separator) pages.
The job control is turned off (value is 0)