Scale or resize PDFs on iOS
Nutrient’s Processor class can be used to scale pages of a document.
The page scaling feature is only available if you have the Document Editor component enabled in your license.
Here’s how to scale pages via the Processor API:
// Create a default configuration.let configuration = Processor.Configuration(document: document)!
// Scale the page down to half its size.let pageInfo = document.pageInfoForPage(at: page)!let pageSize = pageInfo.sizelet newPageSize = CGSize(width: pageSize.width / 2, height: pageSize.height / 2)configuration.scalePage(page, to: newPageSize)
// Start the conversion from `document` to `scaledDocumentURL`.let processor = Processor(configuration: configuration, securityOptions: nil)try processor.write(toFileURL: scaledDocumentURL)// Create a default configuration.PSPDFProcessorConfiguration *configuration = [[PSPDFProcessorConfiguration alloc] initWithDocument:document];
// Scale the page down to half its size.PSPDFPageInfo *pageInfo = [document pageInfoForPageAtIndex:page];CGSize pageSize = pageInfo.size;CGSize newPageSize = CGSizeMake(pageSize.width/2.f, pageSize.height/2.f);[configuration scalePage:page toSize:newPageSize];
// Start the conversion from `document` to `scaledDocumentURL`.PSPDFProcessor *processor = [[PSPDFProcessor alloc] initWithConfiguration:configuration securityOptions:nil];[processor writeToFileURL:scaledDocumentURL error:NULL];