Convert documents to PDF on iOS

Apryse has a powerful conversion system which allows you to convert many file formats to PDF. The PTConvert class handles the conversion process and supports the following file types:

• Office files: .docx, .pptx, .xlsx, .doc (with the office conversion Add-On module)
• Images: .bmp, .jpg, .tif, .png, .gif
• Image collections (zip archives with any type of image listed above)
• Markdown files: .md (with the office conversion Add-On module)

The simplest way to convert and view any file format that Apryse supports is to use the PTDocumentController (or PTTabbedDocumentViewController) method openDocumentWithURL:. This method supports local files, files opened from remote cloud services and "raw" http URLs.

Another way is to convert a file with the PTConvert class's +ToPDF:in_filename: method. The following code shows how to convert a non-PDF file using Apryse's internal conversion:

1// Create empty PDFDoc.
2let doc = PTPDFDoc()
3
4// Convert non-PDF file at "my_file_path"
5PTConvert.toPdf(doc, in_filename: "my_file_path")

1// Create empty PDFDoc.
2PTPDFDoc *doc = [[PTPDFDoc alloc] init];
3
4// Convert non-PDF file at "my_file_path".
5[PTConvert ToPdf:doc in_filename:@"my_file_path"];

The result of the conversion will be contained in the provided PTPDFDoc, which can then be displayed.

In addition to the file types supported by Apryse's internal conversion, it is also possible to convert many other file types with an iOS-specific API. The PTConvert class's +convertOfficeToPDF:paperSize:completion: method can convert any file type supported by WKWebView to PDF. Some of the supported file types include:

• iWork files: .pages, .key, .numbers
• Binary office files: .doc, .ppt, .xls
• Rich Text Format files: .rtf

The following code shows how to convert a file with the iOS-specific API:

1PTConvert.convertOffice(toPDF: "my_file_path", paperSize: .zero) { (pathToPDF) in
2    guard let pathToPDF = pathToPDF else {
3        // Failed to convert file to PDF.
4        return
5    }
6    
7    // Copy temporary PDF to persistent location.
8    let documentDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, false)[0]
9    
10    let urlToPDF = URL(fileURLWithPath: pathToPDF)
11    let destinationURL = URL(fileURLWithPath: documentDirectory).appendingPathComponent(urlToPDF.lastPathComponent)
12    
13    do {
14        try FileManager.default.copyItem(at: urlToPDF, to: destinationURL)
15    } catch {
16        // Failed to copy item to persistent location.
17    }
18
19    // Do something with PDF output.
20}

1[PTConvert convertOfficeToPDF:@"my_file_path" paperSize:CGSizeZero completion:^(NSString *pathToPDF) {
2    if (!pathToPDF) {
3        // Failed to convert file to PDF.
4        return;
5    }
6    
7    NSString *documentDirectory = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, NO)[0];
8    
9    // Copy temporary PDF to persistent location.
10    NSURL *urlToPDF = [NSURL fileURLWithPath:pathToPDF];
11    NSURL *destinationURL = [[NSURL fileURLWithPath:documentDirectory] URLByAppendingPathComponent:urlToPDF.lastPathComponent];
12    
13    NSError *error = nil;
14    BOOL result = [NSFileManager.defaultManager copyItemAtURL:urlToPDF toURL:destinationURL error:&error];
15    if (!result) {
16        // Failed to copy PDF to persistent location.
17    }
18
19    // Do something with PDF output.
20}];

Please see this guide about Web/HTML to PDF.