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How to Save Signature as Byte Array in .NET MAUI Signature Pad Control?
This article demonstrates how to save a signature as a byte array using the .NET MAUI Signature Pad control. Follow the steps below. Step 1: Initialize the Signature Pad Control XAML <VerticalStackLayout Padding="50,0,50,0" Spacing="10"> <Label Text="Signature:" FontSize="20" FontAttributes="Bold" FontFamily="OpenSansSemibold"/> <Frame> <sign:SfSignaturePad x:Name="signaturePad" Background="WhiteSmoke" HeightRequest="200" DrawCompleted="SfSignaturePad_DrawCompleted"/> </Frame> <Label Text="Save Signature as Byte Array:" FontSize="20" FontAttributes="Bold" FontFamily="OpenSansSemibold"/> <Frame> <Image x:Name="image" HeightRequest="250"/> </Frame> </VerticalStackLayout> Step 2: Implement the Logic to Convert Signature into a Byte Array C# private void SfSignaturePad_DrawCompleted(object sender, EventArgs e) { StreamImageSource streamImageSource = (StreamImageSource)signaturePad.ToImageSource(); System.Threading.CancellationToken cancellationToken = System.Threading.CancellationToken.None; Task<Stream> task = streamImageSource.Stream(cancellationToken); Stream stream = task.Result; byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); MemoryStream memoryStream = new MemoryStream(bytes); image.Source = ImageSource.FromStream(() => memoryStream); } Output: Download the complete sample from GitHub. Conclusion I hope you enjoyed learning how to save a signature as a byte array in the .NET MAUI Signature Pad. For more features, visit our .NET MAUI Signature Pad’s feature tour and explore the .NET MAUI Signature Pad documentation. For current customers, you can check out our .NET MAUI components from the License and downloads page. If you are new to Syncfusion®, try our 30-day free trial to explore our .NET MAUI Signature Pad and other components. If you have any queries or require clarification, please let us know in the comments section below. You can also contact us through our support forums, Direct - Trac, or feedback portal. We are always happy to assist you!
How to save signature in a different format in .NET MAUI Signature Pad?
In the .NET MAUI Signature Pad, signatures can be saved with various image formats using the SaveAsImage method. This method allows saving signature images in both PNG and JPEG formats. The default format is PNG. To save as JPEG, include the .jpeg extension in the image name. Note To access the SaveAsImage method, use the Syncfusion.Maui.Core.Internals namespace. XAML <StackLayout Spacing="20" VerticalOptions="Center"> <Frame HeightRequest="300" WidthRequest="400"> <signaturePad:SfSignaturePad x:Name="signaturePad" Background="White" /> </Frame> <Button Text="Save" Clicked="SaveButton_Clicked"/> </StackLayout> C# To save the signature image in a PNG format: using Syncfusion.Maui.Core.Internals; namespace DifferentFormatSignatureImage { public partial class MainPage : ContentPage { public MainPage() { InitializeComponent(); } private void SaveButton_Clicked(object sender, EventArgs e) { // To save image as .png format signaturePad.SaveAsImage("sign"); } } } To save the signature image in a JPEG format: using Syncfusion.Maui.Core.Internals; namespace DifferentFormatSignatureImage { public partial class MainPage : ContentPage { public MainPage() { InitializeComponent(); } private void SaveButton_Clicked(object sender, EventArgs e) { // To save image as .jpeg format signaturePad.SaveAsImage("sign.jpeg"); } } } Note Saved Location: For Windows, Android, and Mac, the image is saved in the Pictures folder. For iOS, it is saved in the Photos Album folder. In Windows and Mac, saving with an existing filename replaces the old file. In Android, when you save the same view with an existing filename, the new image will be saved with a filename with a number appended to it, for example, sign(1).jpeg, and the existing filename sign.jpeg will be removed. When you save a different view with an already existing filename, the new image will be saved with a filename with a number appended to it, for example, sign(1).jpeg, and the existing filename sign.jpeg will remain in the folder. In iOS, the default filename is used (e.g., IMG_001.jpeg). Output Windows: Android: Download the complete sample from GitHub Conclusion I hope you enjoyed learning how to save the signature in different image formats in the .NET MAUI Signature Pad. For more details, visit our .NET MAUI Signature Pad’s feature tour and explore the .NET MAUI Signature Pad documentation. For current customers, check out our .NET MAUI components on this License and downloads page. If you are new to Syncfusion®, try our 30-day free trial to explore our .NET MAUI Signature Pad and other .NET MAUI components. For any queries or clarifications, please comment below, or contact us through our support forums, Direct-Trac, and feedback portal. We are always happy to assist you!
How to save signature in .NET MAUI Signature Pad (SfSignaturePad)?
This section explains how users can save captured signatures as images using the .NET MAUI Signature Pad control. By implementing the saving logic, digital signatures can be effectively converted into image files for later use. Please follow these steps. Step 1: Set Up XAML Layout Create the XAML layout for the page where you intend to capture and save the signature. Construct a layout containing the Signature Pad control and a “Save” button. XAML <StackLayout Spacing="20" VerticalOptions="Center"> <Frame HeightRequest="300" WidthRequest="400"> <signaturePad:SfSignaturePad x:Name="signaturePad" StrokeColor="GreenYellow" Background="White" /> </Frame> <Button Text="Save" Clicked="Button_Clicked"/> </StackLayout> Step 2: Implement the Saving Logic When you click “Save”, implement the saving logic. Use the ToImageSource method to convert the signature drawn on the Signature Pad into an ImageSource object. Then, utilize the SaveAsImage method to save the captured signature as an image file named “Sign.” C# using Syncfusion.Maui.Core.Internals; namespace SignaturePadSample { public partial class MainPage : ContentPage { public MainPage() { InitializeComponent(); } private void Button_Clicked(object sender, EventArgs e) { signaturePad.ToImageSource(); signaturePad.SaveAsImage("Sign"); } } } Note To access the SaveAsImage method, utilize the Syncfusion.Maui.Core.Internals namespace. Download the complete sample from GitHub Conclusion I hope you enjoyed learning how to save a signature in .NET MAUI Signature Pad. Refer to our .NET MAUI Signature Pad’s feature tour page for other groundbreaking feature representations. Explore our .NET MAUI Signature Pad documentation to understand how to present and manipulate data. For current customers, check out our .NET MAUI components from the License and downloads page. If you are new to Syncfusion®, try our 30-day free trial to explore our .NET MAUI Signature Pad and other .NET MAUI components. If you have any queries or require clarification, please let us know in the comments section below. You can also contact us through our support forums, Direct - Trac, or feedback portal. We are always happy to assist you!
How to customize stroke thickness in .NET MAUI SignaturePad (SfSignaturePad)?
In the .NET MAUI Signature Pad, you can customize stroke thickness using the MinimumStrokeThickness and MaximumStrokeThickness properties. These properties allow you to define the range of stroke thickness values that users can apply while drawing. XAML <signaturePad:SfSignaturePad StrokeColor="GreenYellow" WidthRequest="500" HeightRequest="500" MinimumStrokeThickness="1" MaximumStrokeThickness="6"/> Output Download the complete sample from GitHub Conclusion I hope you enjoyed learning how to customize Stroke Thickness in the .NET MAUI Signature Pad. For more features, visit our .NET MAUI Signature Pad’s feature tour and explore the .NET MAUI Signature Pad documentation. For current customers, you can check out our .NET MAUI components from the License and downloads page. If you are new to Syncfusion®, try our 30-day free trial to explore our .NET MAUI Signature Pad and other components. If you have any queries or require clarification, please let us know in the comments section below. You can also contact us through our support forums, Direct - Trac, or feedback portal. We are always happy to assist you!
How to customize stroke color in .NET MAUI Signature Pad (SfSignaturePad)?
To customize the stroke color in the .NET MAUI Signature Pad, you can utilize the StrokeColor property. This property allows you to set the color of the strokes drawn on the signature pad. Here’s how you can achieve this: XAML: <signaturePad:SfSignaturePad StrokeColor="Red" WidthRequest="500" HeightRequest="500"/> Output Download the complete sample from GitHub Conclusion I hope you enjoyed learning how to customize stroke color in the .NET MAUI Signature Pad. For more features, visit our .NET MAUI Signature Pad’s feature tour and explore the .NET MAUI Signature Pad documentation. For current customers, you can check out our .NET MAUI components from the License and downloads page. If you are new to Syncfusion®, try our 30-day free trial to explore our .NET MAUI Signature Pad and other components. If you have any queries or require clarification, please let us know in the comments section below. You can also contact us through our support forums, Direct - Trac, or feedback portal. We are always happy to assist you!
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