- 首页 > it技术 > >
#pragma mark - Merge PDF
【PDF|PDF 文件合并】
- (void)mergePDF
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath1 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"阅办卡.pdf"];
NSString *filePath2 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"文件.pdf"];
NSArray *PDFURLS = [NSArray arrayWithObjects:filePath1,filePath2, nil];
[self joinPDF:PDFURLS];
}
- (NSString *)joinPDF:(NSArray *)listOfPaths {
// File paths
NSString *fileName = [NSString stringWithFormat:@"公文%d.pdf",arc4random_uniform(100)];
NSString *pdfPathOutput = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:fileName];
CFURLRef pdfURLOutput = ( CFURLRef)CFBridgingRetain([NSURL fileURLWithPath:pdfPathOutput]);
NSInteger numberOfPages = 0;
// Create the output context
CGContextRef writeContext = CGPDFContextCreateWithURL(pdfURLOutput, NULL, NULL);
for (NSString *source in listOfPaths) {
CFURLRef pdfURL = ( CFURLRef)CFBridgingRetain([[NSURL alloc] initFileURLWithPath:source]);
//file ref
CGPDFDocumentRef pdfRef = CGPDFDocumentCreateWithURL((CFURLRef) pdfURL);
numberOfPages = CGPDFDocumentGetNumberOfPages(pdfRef);
// Loop variables
CGPDFPageRef page;
CGRect mediaBox;
// Read the first PDF and generate the output pages
//NSLog(@"GENERATING PAGES FROM PDF 1 (%@)...", source);
for (int i=1;
i<=numberOfPages;
i++) {
page = CGPDFDocumentGetPage(pdfRef, i);
mediaBox = CGPDFPageGetBoxRect(page, kCGPDFMediaBox);
CGContextBeginPage(writeContext, &mediaBox);
CGContextDrawPDFPage(writeContext, page);
CGContextEndPage(writeContext);
}
CGPDFDocumentRelease(pdfRef);
CFRelease(pdfURL);
}
CFRelease(pdfURLOutput);
// Finalize the output file
CGPDFContextClose(writeContext);
CGContextRelease(writeContext);
return pdfPathOutput;
}
推荐阅读
