Find PDF page count without reading the whole file

Question

My problem is the following:

There are some huge PDF files (>500MB) and I want to find their page count, using JAVA. If I use itext or pdfbox, I have to wait until it reads the whole file and most of the times this fails, because of the large size of the file or it just takes a lot of time.

So, I would like to know if there is any quick and efficient way to find the page count of a PDF file.

maybe this helps? http://stackoverflow.com/questions/6026971/page-count-of-pdf-with-java?rq=1 — Moh-Aw, Jun 30 '16 at 06:57
nope, I tried it and it still takes A LOT of time... I'm searching something like read the metadata and take the page count — user3519936, Jun 30 '16 at 07:05

score 2 · Answer 1 · answered Jun 30 '16 at 07:00

Possible duplicate? Page count of Pdf with Java

and from that's post, Mark Storer's answer:

The itext API underwent a little overhaul. Now (in version 5.4.x) the correct way to use it is to pass through java.io.RandomAccessFile:

int efficientPDFPageCount(File file) {
     RandomAccessFile raf = new RandomAccessFile(file, "r");
     RandomAccessFileOrArray pdfFile = new RandomAccessFileOrArray(
          new RandomAccessSourceFactory().createSource(raf));
     PdfReader reader = new PdfReader(pdfFile, new byte[0]);
     int pages = reader.getNumberOfPages();
     reader.close();
     return pages;
}

@user3519936 Please share the file in question and indicate an acceptable amount of time. — mkl, Jun 30 '16 at 13:00

Find PDF page count without reading the whole file

1 Answers1