Guides

Merge Pages

The steps to merge pages are as follows:

1. Create a blank PDF document.
2. Open the PDF document containing the pages to be merged.
3. Select all the pages to be merged and combine them into the same document.

This example shows how to merge pages:

java

CPDFDocument documentForMerge = CPDFDocument.createDocument(context);

CPDFDocument document1 = new CPDFDocument(context);
document1.open(pdfFile);

CPDFDocument document2 = new CPDFDocument(context);
document2.open(pdfFile);

documentForMerge.importPages(document1, 0, document1.getPageCount() - 1, document.getPageCount());
documentForMerge.importPages(document2, 0, document2.getPageCount() - 1, document.getPageCount());

kotlin

val documentForMerge = CPDFDocument.createDocument(context)

val document1 = new CPDFDocument(context)
document1.open(pdfFile);

val document2 = new CPDFDocument(context)
document2.open(pdfFile)

documentForMerge.importPages(document1, 0, document1.pageCount - 1, document.pageCount);
documentForMerge.importPages(document2, 0, document2.pageCount - 1, document.pageCount);

When the document is bound and displayed through CPDFReaderView, after modifying the document pages, you need to call the following method to refresh the view so that the changes take effect immediately:

cpdfReaderView.reloadPages();