Document Editor
CPDFDocument
and CPDFPage
classes.
ComPDFKit PDF SDK benefits include:
- PDF manipulation Split pages Merge pages Extract pages
- Page edit Delete pages Insert pages (choose from another document, a blank page or an image) Move pages Rotate pages Replace pages Exchange pages
- Access document information
- Extract image
PDF Manipulation
Split pages
CPDFDocument can extract ranges of pages from one document and put them into another document. If you run this operation multiple times with different page indexes, you can effectively split a PDF into as many documents as you require.
To split a PDF document into multiple pages, please use the following method:
1. Create a blank PDF document.
CPDFDocument *document = [[[CPDFDocument alloc] init] autorelease];
2. Open PDF document that contains the pages you want to split.
// File path
NSString *path1 = @"...";
NSURL *url1 = [NSURL fileURLWithPath:path1];
CPDFDocument *document1 = [[[CPDFDocument alloc] initWithURL:url1] autorelease];
3. Extract specific pages from PDF document that you just opened, and import it into the blank PDF document.
// Pages that need to be split, e.g. 2 to 5 pages
NSIndexSet *indexSet = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(1, 4)];
[document importPages:indexSet fromDocument:document1 atIndex:0];
4. Save the document.
// Save path
NSString *path = @"...";
NSURL *url = [NSURL fileURLWithPath:path];
[document writeToURL:url];
Merge pages
ComPDFKit allows you to instantiate multiple CPDFDocument
, and you can use the CPDFDocument
API to merge multiple PDF files into a single one.
To merge PDF documents into one file, please use the following method:
1. Create a blank PDF document.
CPDFDocument *document = [[[CPDFDocument alloc] init] autorelease];
2. Open the PDF documents that contain the pages you want to merge.
// File path
NSString *path1 = @"...";
NSURL *url1 = [NSURL fileURLWithPath:path1];
CPDFDocument *document1 = [[[CPDFDocument alloc] initWithURL:url1] autorelease];
// File path
NSString *path2 = @"...";
NSURL *url2 = [NSURL fileURLWithPath:path2];
CPDFDocument *document2 = [[[CPDFDocument alloc] initWithURL:url2] autorelease];
3. Merge all the pages from the documents you just opened, and import it into the blank PDF document.
[document importPages:nil fromDocument:document1 atIndex:document.pageCount];
[document importPages:nil fromDocument:document2 atIndex:document.pageCount];
4. Save the document.
// Save path
NSString *path = @"...";
NSURL *url = [NSURL fileURLWithPath:path];
[document writeToURL:url];
importPages
of CPDFDocument::importPages:fromDocument:atIndex:
to set specific pages.
Extract pages
can extract ranges of pages from one document and put them into a blank document. If you run this operation, you can effectively extract a PDF as you require. Refer to split pages for more details.