How to insert data into pdf with pdfbox+poi in java

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Specify page number insertion / replacement

Pdfbox does not seem to specifically provide this method, but the existing methods can also be combined to achieve this function.

Requirements: a pdf file A has 10 pages. Now you want to insert a new pdf file B on page 6. After the insertion is completed, the entire pdf file A becomes 11 pages.

Idea 1 (insert):

First split the 10 pdf into 10 1-page pdf, put them in order, the file names are: 1.pdf, 2.pdf....10.pdf. When you split to page 6, put the file B in, rename it and ask 6.pdf. Page 6 in the original pdf file A was renamed to 7.pdf, then pushed back in turn, and the final 1.pdf-> 11.pdf has a total of 11 files.

Then make the merge function merge the 11 pdf in order.

Idea 2 (replacement):

On the basis of insertion, when splitting, discard the sixth page in pdf file A, use the new page to name 6.pdf instead, and then merge is done.

1.pom org.apache.pdfbox pdfbox-tools 2.0.25 net.sf.cssbox pdf2dom 2.0.1 com.itextpdf itextpdf 5.5.10 com.itextpdf.tool xmlworker 5.5.10 org.apache.poi poi-ooxml 3.15 org.apache.poi poi-scratchpad 3.152. Implementation method / * * from fhadmin.cn * specify page number insertion page * @ param filename1 source pdf path * @ param filename2 pdf path to be inserted * @ param number inserted page number * @ param newfilename new pdf path * @ throws Exception * / public void insertPage (String filename1,String filename2,int number,String newfilename,String tempPath) throws Exception {PDDocument pdf1 = PDDocument.load (new File (filename1)) PDDocument pdf2 = PDDocument.load (new File (filename2)); / / 1, disassemble the first pdf by page number Splitter splitter = new Splitter (); List Pages = splitter.split (pdf1); Iterator iterator = Pages.listIterator (); PDFMergerUtility PDFmerger = new PDFMergerUtility (); int I = 1; while (iterator.hasNext ()) {if (i==number) {System.out.println ("currently inserted Page number:" + number) Pdf2.save (tempPath+ "/" + I + ".pdf"); iTunes;} PDDocument pd = iterator.next (); String tempFile = tempPath+ "/" + I + ".pdf"; System.out.println ("start split:" + tempFile); pd.save (tempFile); iTunes;} / / 2, start reassembling PDFmerger.setDestinationFileName (newfilename) / / the I above has been added for the last time. Here we do not take the for (int job1witj).