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stlehmann / pdftools

small collection of python scripts for pdf manipulation
MIT License
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Reorder booklet #2

Closed jirmed closed 6 years ago

jirmed commented 9 years ago

Hello,

I tried to use pdftools/pdfposter to split a scanned image of an A4 booklet. The booklet has been unstapled and scanned like double sided A3. I used pdfposter -p 2x1A4 on it. The document got perfectly split into individual pages. The last step needed is to reorder the booklet into the original page order (1,2,3...). It would be great if you could add this function to the package.

Regards

Jiri

stlehmann commented 9 years ago

@jirmed In general for merging multiple files in one you can use pdfmerge. How do you determine the order of the files?

jirmed commented 9 years ago

Example: I have a booklet 40 pages A4 portrait. If I unstaple it I get 10 sheets A3 (4 pages each). I put it into an automatic duplex scanner and I get PDF with 20 landscape A3 pages. In my 40 pages example the (double)pages are 40/1,2/39,38/3,4/37,...,22/19,20/21. Using pdfposter -p 2x1A4 I get a new 40 pages document (A4 portrait) in order 40,1,2,39,38,3,4,37,...,22,19,20,21. The last step needed is to reorder the PDF in the original sequence (1,2,3,4,...,39,40)

stlehmann commented 9 years ago

Ah I get it. It seems you have a very specific usecase there. The scripts in this repository are intended for general everday use. So this usecase is not supported. I guess for you it would be best to write your own little Python script using PyPdf2 directly to achieve your desired behaviour.

jirmed commented 9 years ago

I think it is not such a very specific usercase. There is even a commercial (Win only) software that can do that (http://www.axpertsoft.com/booklet-to-normal-pdf/)

stlehmann commented 9 years ago

Haven' t had the need for it so far. But if you find it useful you' re very welcome to make a PR for the feature.