> 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-html.md).

# Convert HTML to PDF on iOS

Convert local HTML files to PDF without an internet connection. Learn how to use platform-specific conversion APIs for HTML to PDF conversion. Find out more here! The Apryse iOS SDK streamlines secure

{% hint style="info" %}
Internet connection is not required when converting local HTML files. However, it is required for converting HTTP/HTTPS links.
{% endhint %}

The platform-specific conversion API also supports HTML to PDF conversion, either with the [`+convertOfficeToPDF:paperSize:completion:`](https://sdk.apryse.com/api/ios/Classes/PTConvert.html#/c:objc\(cs\)PTConvert\(cm\)convertOfficeToPDF:paperSize:completion:) method for `.html` files or the [`+convertHTMLStringToPDF:baseURL:paperSize:completion:`](https://sdk.apryse.com/api/ios/Classes/PTConvert.html#/c:objc\(cs\)PTConvert\(cm\)convertHTMLStringToPDF:baseURL:paperSize:completion:) for raw HTML text.

The following code shows how to convert an HTML string to PDF:

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

```swift
PTConvert.convertHTMLString(toPDF: htmlString, baseURL: baseURL, paperSize: .zero) { (pathToPDF) in
    guard let pathToPDF = pathToPDF else {
        // Failed to convert HTML 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 convertHTMLStringToPDF:htmlString baseURL:baseURL paperSize:CGSizeZero completion:^(NSString *pathToPDF) {
    if (!pathToPDF) {
        // Failed to convert HTML 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 %}

where `baseURL` is the URL to use as the page's base URL for resolving relative links in the document.


---

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