docs: add note about polling when using double-sided collation

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Dennis Brakhane 2023-08-20 19:51:14 +02:00
parent ce36c2d0ea
commit 48be9c0fd1

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@ -589,6 +589,12 @@ case, Paperless will remove the staging copy as well as the scan, and give you a
message asking you to restart the process from scratch, by scanning the odd pages again,
followed by the even pages.
It's important that the scan files get consumed in the correct order, and one at a time.
You therefore need to make sure that Paperless is running while you upload the files into
the directory; and if you're using [polling](/configuration#polling), make sure that
`CONSUMER_POLLING` is set to a value lower than it takes for the second scan to appear,
like 5-10 or even lower.
Another thing that might happen is that you start a double sided scan, but then forget
to upload the second file. To avoid collating the wrong documents if you then come back
a day later to scan a new double-sided document, Paperless will only keep an "odd numbered
@ -597,11 +603,11 @@ scan a completely new "odd numbered pages" one. The old staging file will get di
### Interaction with "subdirs as tags"
The collation feature can be used together with the "subdirs as tags" feature (but this is not
a requirement). Just create a correctly named double-sided subdir in the hierachy and upload
your scans there. For example, both `double-sided/foo/bar` as well as `foo/bar/double-sided` will
cause the collated document to be treated as if it were uploaded into `foo/bar` and receive both
`foo` and `bar` tags, but not `double-sided`.
The collation feature can be used together with the [subdirs as tags](/configuration#consume_config)
feature (but this is not a requirement). Just create a correctly named double-sided subdir
in the hierachy and upload your scans there. For example, both `double-sided/foo/bar` as
well as `foo/bar/double-sided` will cause the collated document to be treated as if it
were uploaded into `foo/bar` and receive both `foo` and `bar` tags, but not `double-sided`.
### Interaction with document splitting