Use vector stamps instead of blurry shapes

// Create a new stamp annotation using the appearance stream generator.
val stampAnnotation = StampAnnotation(pageIndex, RectF(300f, 500f, 500f, 300f), "Stamp with custom AP stream")

// Create the appearance stream generator from the URL of a PDF file.
val logoUri = Uri.fromFile("path/to/your/logo.pdf")
stampAnnotation.appearanceStreamGenerator = ContentResolverAppearanceStreamGenerator(logoUri)

// Add the newly created annotation to the document.
document.getAnnotationProvider().addAnnotationToPage(stampAnnotation)

// Create a new stamp annotation using the appearance stream generator.
StampAnnotation stampAnnotation = new StampAnnotation(pageIndex, new RectF(300f, 500f, 500f, 300f), "Stamp with custom AP stream");

// Create the appearance stream generator from the URL of a PDF file.
Uri logoUri = Uri.fromFile("path/to/your/logo.pdf");
stampAnnotation.setAppearanceStreamGenerator(new ContentResolverAppearanceStreamGenerator(logoUri);

// Add the newly created annotation to the document.
document.getAnnotationProvider().addAnnotationToPage(stampAnnotation);

// Create `PSPDFDocument`.
let document = PSPDFDocument(url: documentURL)

// Create the URL of the appearance stream that uses a PDF file.
let samplesURL = Bundle.main.resourceURL?.appendingPathComponent("Samples")
let logoURL = samplesURL?.appendingPathComponent("PSPDFKit Logo.pdf")

// Create a new stamp annotation using the appearance stream generator.
let vectorStampAnnotation = PSPDFStampAnnotation()

// Set the appearance stream.
vectorStampAnnotation.appearanceStreamGenerator = PSPDFFileAppearanceStreamGenerator(fileURL: logoURL)

// Set the bounding box.
vectorStampAnnotation.boundingBox = CGRect(x: 180, y: 150, width: 444, height: 500)

// Add the newly created annotation to the document.
document.add([vectorStampAnnotation])

// Create `PSPDFDocument`.
PSPDFDocument *document = [[PSPDFDocument alloc] initWithURL:documentURL];

// Create the URL of the appearance stream that uses a PDF file.
NSURL *samplesURL = [NSBundle.mainBundle.resourceURL URLByAppendingPathComponent:@"Samples"];
NSURL *logoURL = [samplesURL URLByAppendingPathComponent:@"PSPDFKit Logo.pdf"];

// Create a new stamp annotation using the appearance stream generator.
PSPDFStampAnnotation *vectorStampAnnotation = [[PSPDFStampAnnotation alloc] init];

// Set the appearance stream.
vectorStampAnnotation.appearanceStreamGenerator = [[PSPDFFileAppearanceStreamGenerator alloc] initWithFileURL:logoURL];
vectorStampAnnotation.boundingBox = CGRectMake(180.f, 150.f, 444.f, 500.f);

// Set the bounding box.
CGRect boundingBox = { .origin.x = 180.f, .origin.y = 150.f, .size.height = 444.f, .size.width = 500.f };
vectorStampAnnotation.boundingBox = boundingBox;

// Add the newly created annotation to the document.
[docment addAnnotations:@[imageStampAnnotation] options:nil];