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https://issues.apache.org/jira/browse/PDFBOX-5078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17265078#comment-17265078
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Joseph commented on PDFBOX-5078:
--------------------------------
[^64-1212 (4).pdf]
Attached a sample booklet PDF file
PDDocument outdoc = new PDDocument();
PDPage page = document.getPage(i);
PDRectangle cropBox = document.getPage(i).getCropBox();
float upperRightY = cropBox.getUpperRightY();
float lowerLeftY = cropBox.getLowerLeftY();
cropBox.setLowerLeftY(upperRightY/2);
cropBox.setUpperRightY(upperRightY/2);
page.setCropBox(new PDRectangle(cropBox.getCOSArray()));
//page.setCropBox(cropBox);
outdoc.importPage(page);
int j = i+1;
outdoc.save(f.getParent()+File.separator+"sample_"+(j)+".pdf");
cropBox = page.getCropBox();
cropBox.setUpperRightY(upperRightY/2);
cropBox.setLowerLeftY(lowerLeftY/2);
//page.setCropBox(cropBox);
page.setCropBox(new PDRectangle(cropBox.getCOSArray()));
outdoc.importPage(page);
outdoc.save(f.getParent()+File.separator+"sample_"+(j+1)+".pdf");
outdoc.close();
> How to Split A PDF Page vertically into 2 Pieces via PDFBOX
> -----------------------------------------------------------
>
> Key: PDFBOX-5078
> URL: https://issues.apache.org/jira/browse/PDFBOX-5078
> Project: PDFBox
> Issue Type: Bug
> Reporter: Joseph
> Priority: Major
> Attachments: 64-1212 (4).pdf
>
>
> We can able to convert A4 PDF to Booklet PDF via PrintDF open source
> ([https://github.com/Raudius/PrintDF/blob/master/src/us/raudi/printdf/PrintDF.java)]
> However not able to convert Booklet to A4 i.e that is cutting vertically of a
> Booklet PDF page and resequence all the pages.
> 1st problem is not sure how to cut veritically each and every PDF page and
> save as 2 separate PDF page or file
> 2nd re-sequence of the booklet to proper sequence as 1, 2, 3, 4, 5 by first
> identifying the actual book sequence
> (http://www.boooks.org/index.php?page=21&lng=1)
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