Shrink PDF Document Size/Writing footer

[HHuckebein]

Hi community,

I've got 2 questions concerning the generation of pdf documents.

1. Shrinking PDF Document size
The document page I generate consist of a base document (pdf template) and the text I draw on top.
That leads to the situation that the final document is quite large.
As the base document is always the same I wonder if there is a way to store that template only once
and use a reference.

2. Writing footer
The number of pages varies so during page generation I don't know what the final number of pages is.

I tried to open the pages again and writing the footer but my approach wasn't successful.

UIGraphicsBeginPDFContextToFile(pdfFilePath, CGRectZero, (NSDictionary *)auxiliary);
UIGraphicsBeginPDFPageWithInfo(mediaRect, nil);
.. drawing stuff
[self drawPageNumberdfContext document:baseDocument maxNumberOfPages:currentPage];

UIGraphicsEndPDFContext();

The pageRef I receive for i=1 is actually the last page ref all further pageRef's are NULL.
So I guess that code is completely wrong

- (void)drawPageNumber:(CGContextRef)context document:(CGPDFDocumentRef)document maxNumberOfPages:(NSInteger)maxNumberOfPages

{

    int rotation = 0;

    bool preserveAspectRatio = YES;

    CGRect mediaRect = CGRectMake(0, 0, kMaxX_DIN_A4, kMaxY_DIN_A4);

    CGPDFBox box = kCGPDFMediaBox;



    for (int i = 1; i <= maxNumberOfPages; i++) {

        CGPDFPageRef pageRef = CGPDFDocumentGetPage(document, i);

        CGContextSaveGState(context);

        // make a drawing transform with respect to rect, rotation, preserveAscpectRation for the mediabo

        CGAffineTransform m = CGPDFPageGetDrawingTransform (pageRef, box, mediaRect, rotation, preserveAspectRatio);

        CGContextConcatCTM (context, m);

        CGContextClipToRect (context,CGPDFPageGetBoxRect (pageRef, box));

        NSString *pageNumber = [NSString stringWithFormat:@"Seite %d von %d", i, maxNumberOfPages];

        [pageNumber drawInRect:CGRectMake(350, kMaxY_DIN_A4 - kYOriginMinimum, 150, 10) withFont:[UIFont systemFontOfSize:kOfferNormalFontSize] lineBreakMode:UILineBreakModeClip alignment:UITextAlignmentRight];

        CGContextRestoreGState(context);

    }

}

I've to confess that I'm not the pdf expert.

Thx.

Bernd

[escapetoafrica]

Nice Information for sharing for the Code.
I think i have use in my live site, then the i show the effects "OK"

Thank You.