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PreviewFile.Append and double sided printing


I merge multiple *.ll files together with PreviewFile.Append(fileName).
Each *.ll file contains 1, 2, or 3 pages.
In the preview dialog I want to print the combined report.
When I set the printer to use double sided, each report starts on a new page, as if each report is send separate to the printer.
I see the same if I use a virtual PDF printer, it asks me if I want to merge multiple pdf files.
If I save as PDF from the Preview Dialog and use Acrobat to print double sided it nicely uses all back pages as if was a single print job.

Is it possible to remove these “print job” markers from the combined *.ll file at the PreviewFile.Append() call or by traversing the PreviewPage(s) in the *.ll file?
I use L&L18.


Hello Mario,

thank you for your post.

After speaking to our development team there is no such feature to print a merged preview file seamlessly via double sided printing. If you could contact us directly via phone or mail we can have a closer look to find a suitable solution for you.

Best regards,

Patrick Preuschoff
Technical Support
combit GmbH

I have solved the problem by writing my own Print Loop.

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