diff --git a/EnvelopeGenerator.ReceiverUI/Models/AnnotationDto.cs b/EnvelopeGenerator.ReceiverUI/Models/AnnotationDto.cs
index fcc48e9b..f0172832 100644
--- a/EnvelopeGenerator.ReceiverUI/Models/AnnotationDto.cs
+++ b/EnvelopeGenerator.ReceiverUI/Models/AnnotationDto.cs
@@ -13,6 +13,7 @@ namespace EnvelopeGenerator.ReceiverUI.Models;
 /// <b>Difference from GDPicture:</b> GDPicture uses PDF points with <b>bottom-left</b> origin (PDF standard); Y is flipped.
 /// Convert: <c>yDX = (pageHeightPt - yGD - elemHeightPt) * (100.0 / 72.0)</c>
 /// </summary>
+[Obsolete("Use SignatureDto with SignatureService.")]
 public record AnnotationDto
 {
     /// <summary>Unique identifier of the annotation.</summary>
diff --git a/EnvelopeGenerator.ReceiverUI/Models/SignatureDto.cs b/EnvelopeGenerator.ReceiverUI/Models/SignatureDto.cs
new file mode 100644
index 00000000..8c5acc35
--- /dev/null
+++ b/EnvelopeGenerator.ReceiverUI/Models/SignatureDto.cs
@@ -0,0 +1,13 @@
+namespace EnvelopeGenerator.ReceiverUI.Models;
+
+public class SignatureDto
+{
+    public int Id { get; set; }
+
+    public double X { get; set; }
+
+    public double Y { get; set; }
+
+    public int Page { get; set; }
+
+}
\ No newline at end of file
diff --git a/EnvelopeGenerator.ReceiverUI/Pages/EnvelopeViewer.razor b/EnvelopeGenerator.ReceiverUI/Pages/EnvelopeViewer.razor
index 80135751..66af967d 100644
--- a/EnvelopeGenerator.ReceiverUI/Pages/EnvelopeViewer.razor
+++ b/EnvelopeGenerator.ReceiverUI/Pages/EnvelopeViewer.razor
@@ -8,7 +8,7 @@
 @inject IOptions<ApiOptions> AppOptions
 @inject IOptions<PdfViewerOptions> PdfViewerOptions
 @inject IJSRuntime JSRuntime
-@inject AnnotationService AnnotService
+@inject SignatureService SignatureService
 @implements IAsyncDisposable
 
 <link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
@@ -212,7 +212,9 @@ protected override async Task OnInitializedAsync() {
                 _errorMessage = $"Dokument konnte nicht geladen werden. HTTP Status: {statusCode}";
             }
 
-            var annots = await AnnotService.GetAnnotationsAsync(EnvelopeKey);
+            var signatures = await SignatureService.GetAsync(EnvelopeKey);
+
+            await JSRuntime.InvokeVoidAsync("console.log", signatures);
 
         } catch (Exception ex) {
             _errorMessage = $"Fehler: {ex.Message}";
diff --git a/EnvelopeGenerator.ReceiverUI/Services/AnnotationService.cs b/EnvelopeGenerator.ReceiverUI/Services/AnnotationService.cs
index 5fde8210..ead7437c 100644
--- a/EnvelopeGenerator.ReceiverUI/Services/AnnotationService.cs
+++ b/EnvelopeGenerator.ReceiverUI/Services/AnnotationService.cs
@@ -14,6 +14,7 @@ namespace EnvelopeGenerator.ReceiverUI.Services;
 /// <c>fake-data/annotations.json</c>. To switch to real data, update the
 /// YARP route in <c>yarp.json</c> — no code change required.
 /// </summary>
+[Obsolete("Use SignatureService.")]
 public class AnnotationService(HttpClient http, IOptions<ApiOptions> apiOptions)
 {
     private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
diff --git a/EnvelopeGenerator.ReceiverUI/Services/SignatureService.cs b/EnvelopeGenerator.ReceiverUI/Services/SignatureService.cs
new file mode 100644
index 00000000..0955ed5b
--- /dev/null
+++ b/EnvelopeGenerator.ReceiverUI/Services/SignatureService.cs
@@ -0,0 +1,24 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+using EnvelopeGenerator.ReceiverUI.Models;
+using EnvelopeGenerator.ReceiverUI.Options;
+using Microsoft.Extensions.Options;
+
+namespace EnvelopeGenerator.ReceiverUI.Services;
+
+public class SignatureService(HttpClient http, IOptions<ApiOptions> apiOptions)
+{
+    private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
+
+    public async Task<IReadOnlyList<SignatureDto>> GetAsync(string envelopeKey, CancellationToken cancel = default)
+    {
+        var url = $"{apiOptions.Value.BaseUrl}/api/Signature/{Uri.EscapeDataString(envelopeKey)}";
+        var response = await http.GetAsync(url, cancel);
+
+        if (!response.IsSuccessStatusCode)
+            throw new HttpRequestException($"Failed to retrieve signatures for envelope {envelopeKey}: {response.StatusCode} {response.ReasonPhrase}");
+
+        var result = await response.Content.ReadFromJsonAsync<List<SignatureDto>>(_jsonOptions, cancel);
+        return result ?? [];
+    }
+}