Mupdf Generate Thumbnail

Question

I implemented E-Book App using Mupdf Library and want to generate thumbnail for each pdf file in my project Could Anyone tell me how to generate This? Thanks in advance

Your question is similar to http://stackoverflow.com/questions/15358461/create-image-of-all-pages-in-pdf-using-mupdf-library/15382454#15382454 — Librelio, Jun 28 '13 at 15:03

score 5 · Answer 1 · answered Mar 24 '15 at 06:39

In Librelio they're using the old version of project muPDF without Cookie. In new versions you need to extend mu pdf core, like this:

class MuPDFThumb extends MuPDFCore{
    public MuPDFThumb(Context context, String filename) throws Exception{
        super(context, filename);
    }

    public Bitmap thumbOfFirstPage(int w, int h){
        PointF pageSize = getPageSize(0);
        float mSourceScale = Math.max(w/pageSize.x, h/pageSize.y);

        Point size = new Point((int)(pageSize.x*mSourceScale), (int)(pageSize.y*mSourceScale));
        final Bitmap bp = Bitmap.createBitmap(size.x,size.y, Bitmap.Config.ARGB_8888);

        drawPage(bp,0,size.x, size.y, 0, 0, size.x, size.y,new Cookie());
        return bp;
    }
}

You need to extends, because Cookie is an internal class of MuPDFCore and it is required for calling drawPage.

The method thumbOfFirstPage takes 2 arguments: width and height of the ImageView to fill with bitmap:

thumbnailImageView.setImageBitmap(bPGenerated) in UIThread

I was having the same problem with the internal class `Cookie`. Thanks to your comment now we know that we are forced to extend MuPDFCore — MatPag, Jan 13 '17 at 12:04

score 1 · Answer 2 · edited Jul 01 '14 at 18:55

1

Try the following:

core.drawPage(bm, page, pageW, pageH, patchX, patchY, patchW, patchH);

edited Jul 01 '14 at 18:55

Andrew Schuster

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answered Jul 01 '14 at 18:34

user2589629

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Would you like explain more!? – Dr.jacky Jun 16 '15 at 07:46

score 0 · Answer 3 · answered Jun 28 '13 at 08:15

0

If you just want to generate a thumbnail image of the first page for a PDF file, you can use the command line tool mudraw:

mudraw -w 128 -h 128 -o thumbnail.png file.pdf 1

answered Jun 28 '13 at 08:15

ccxvii

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sorry i want to generate it inside code to deal with it and display it in grid view – Bibo Wagdy Jun 28 '13 at 19:07
@BiboWagdy, just look at the source in `mudraw.c`. – lhf Jul 12 '13 at 12:29
Please when i press search button, search text box does not appear in portrait mode and it does not support arabic words for search – Bibo Wagdy Sep 19 '13 at 19:07

Mupdf Generate Thumbnail

3 Answers3