How can I remove the first page of a PDF file with Java?

Question

I was thinking about using a library such as PDFBox but I would like your input.

SOLUTION

With IText

public void removeFirstPage(String input_filename, String output_filename) throws DocumentException, IOException {
    File outFile = new File(output_filename);
    PdfReader reader = new PdfReader(input_filename);
    int pages_number = reader.getNumberOfPages();
    if(pages_number > 0) {
        Document document = new Document(reader.getPageSizeWithRotation(1));
        PdfCopy copy = new PdfCopy(document, new FileOutputStream(outFile));
        document.open();
    for(int i=2; i <= pages_number;i++) {
            PdfImportedPage page = copy.getImportedPage(reader, i);
        copy.addPage(page);
    }
        document.close();     
    }
}

Answer 1

I can recommend iText, it works pretty well for manipulating PDFs or even constructing them from scratch.

There is also a tutorial on how to manipulate PDFs. I didn't see a way to delete pages, but the tool supports creating a new PDF by copying content from another one. So you could just copy all the pages but the first.

Answer 2

Multivalent.

"PDF: impose, compress, uncompress, info, encrypt / decrypt, split and merge, and validate."