> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/ios/conversion/convert-to-pdf.md).

# Convert documents to PDF on iOS

Convert and save annotations with Apryse's powerful conversion system. Learn how to convert various file formats to PDF effortlessly. Explore the PTConvert class for seamless file conversion. The Apry

{% hint style="info" %}
Saving annotations back to non-PDF formats is not supported. You can instead save the annotated `PDFDoc` to a PDF file.
{% endhint %}

Apryse has a powerful conversion system which allows you to convert many file formats to PDF. The [`PTConvert`](https://sdk.apryse.com/api/ios/Classes/PTConvert.html) 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)

## Open a non-PDF file

The simplest way to convert and view any file format that Apryse supports is to use the [`PTDocumentController`](https://sdk.apryse.com/api/ios/Classes/PTDocumentController.html) (or [`PTTabbedDocumentViewController`](https://sdk.apryse.com/api/ios/Classes/PTTabbedDocumentViewController.html)) method `openDocumentWithURL:`. This method supports local files, files opened from remote cloud services and "raw" `http` URLs.

## Convert a non-PDF file

Another way is to convert a file with the `PTConvert` class's [`+ToPDF:in_filename:`](https://sdk.apryse.com/api/ios/Classes/PTConvert.html#/c:objc\(cs\)PTConvert\(cm\)ToPdf:in_filename:) method. The following code shows how to convert a non-PDF file using Apryse's internal conversion:

{% tabs %}
{% tab title="Swift" %}
{% code lineNumbers="true" %}

```swift
// Create empty PDFDoc.
let doc = PTPDFDoc()

// Convert non-PDF file at "my_file_path"
PTConvert.toPdf(doc, in_filename: "my_file_path")
```

{% endcode %}
{% endtab %}

{% tab title="Obj-C" %}
{% code lineNumbers="true" %}

```objc
// Create empty PDFDoc.
PTPDFDoc *doc = [[PTPDFDoc alloc] init];

// Convert non-PDF file at "my_file_path".
[PTConvert ToPdf:doc in_filename:@"my_file_path"];
```

{% endcode %}
{% endtab %}
{% endtabs %}

The result of the conversion will be contained in the provided `PTPDFDoc`, which can then be [displayed](/ios/basic-operations/open/view.md).

## Convert other non-PDF files

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:`](https://sdk.apryse.com/api/ios/Classes/PTConvert.html#/c:objc\(cs\)PTConvert\(cm\)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:

{% tabs %}
{% tab title="Swift" %}
{% code lineNumbers="true" %}

```swift
PTConvert.convertOffice(toPDF: "my_file_path", paperSize: .zero) { (pathToPDF) in
    guard let pathToPDF = pathToPDF else {
        // Failed to convert file to PDF.
        return
    }
    
    // Copy temporary PDF to persistent location.
    let documentDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, false)[0]
    
    let urlToPDF = URL(fileURLWithPath: pathToPDF)
    let destinationURL = URL(fileURLWithPath: documentDirectory).appendingPathComponent(urlToPDF.lastPathComponent)
    
    do {
        try FileManager.default.copyItem(at: urlToPDF, to: destinationURL)
    } catch {
        // Failed to copy item to persistent location.
    }

    // Do something with PDF output.
}
```

{% endcode %}
{% endtab %}

{% tab title="Obj-C" %}
{% code lineNumbers="true" %}

```objc
[PTConvert convertOfficeToPDF:@"my_file_path" paperSize:CGSizeZero completion:^(NSString *pathToPDF) {
    if (!pathToPDF) {
        // Failed to convert file to PDF.
        return;
    }
    
    NSString *documentDirectory = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, NO)[0];
    
    // Copy temporary PDF to persistent location.
    NSURL *urlToPDF = [NSURL fileURLWithPath:pathToPDF];
    NSURL *destinationURL = [[NSURL fileURLWithPath:documentDirectory] URLByAppendingPathComponent:urlToPDF.lastPathComponent];
    
    NSError *error = nil;
    BOOL result = [NSFileManager.defaultManager copyItemAtURL:urlToPDF toURL:destinationURL error:&error];
    if (!result) {
        // Failed to copy PDF to persistent location.
    }

    // Do something with PDF output.
}];
```

{% endcode %}
{% endtab %}
{% endtabs %}

## Convert HTML to PDF

Please see [this guide](/ios/conversion/convert-html.md) about Web/HTML to PDF.


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