I have a business requirement that requires me to splits pdfs into multiple documents. Lets say I have a 100MB pdf, I need to split that into for simplicity sake, into multiple pdfs no larger than 10MB a piece.
I am using iText.
I am going to get the original pdf, and loop through the pages, but how can I determine the file size of each page without writing it separately to the disk?
Sample code for simplicity
int numPages = reader.getNumberOfPages();
PdfImportedPage page;
for (int currentPage = 0; currentPage < numPages; ){
++currentPage;
//Get page from reader
page = writer.getImportedPage(reader, currentPage);
// I need the size in bytes here of the page
}
I think the easiest way is to write it to the disk and delete it afterwards:
Document document = new Document();
File f= new File("C:\\delete.pdf"); //for instance
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(f));
document.open();
document.add(page);
document.close();
long filesize = f.length(); //this is the filesize in byte
f.delete();
I'm not absolutely sure, I admit, but I don't know how it should be possible to figure out the filesize if the file is not existing.
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