diff --git a/src/main/java/stirling/software/SPDF/controller/api/converters/ConvertPDFToPDFA.java b/src/main/java/stirling/software/SPDF/controller/api/converters/ConvertPDFToPDFA.java
index 41498413..119e0902 100644
--- a/src/main/java/stirling/software/SPDF/controller/api/converters/ConvertPDFToPDFA.java
+++ b/src/main/java/stirling/software/SPDF/controller/api/converters/ConvertPDFToPDFA.java
@@ -16,7 +16,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
-import stirling.software.SPDF.model.api.PDFFile;
+import stirling.software.SPDF.model.api.converters.PdfToPdfARequest;
 import stirling.software.SPDF.utils.ProcessExecutor;
 import stirling.software.SPDF.utils.ProcessExecutor.ProcessExecutorResult;
 import stirling.software.SPDF.utils.WebResponseUtils;
@@ -31,8 +31,9 @@ public class ConvertPDFToPDFA {
             summary = "Convert a PDF to a PDF/A",
             description =
                     "This endpoint converts a PDF file to a PDF/A file. PDF/A is a format designed for long-term archiving of digital documents. Input:PDF Output:PDF Type:SISO")
-    public ResponseEntity<byte[]> pdfToPdfA(@ModelAttribute PDFFile request) throws Exception {
+    public ResponseEntity<byte[]> pdfToPdfA(@ModelAttribute PdfToPdfARequest request) throws Exception {
         MultipartFile inputFile = request.getFileInput();
+        String outputFormat = request.getOutputFormat();
 
         // Save the uploaded file to a temporary location
         Path tempInputFile = Files.createTempFile("input_", ".pdf");
@@ -47,7 +48,7 @@ public class ConvertPDFToPDFA {
         command.add("--skip-text");
         command.add("--tesseract-timeout=0");
         command.add("--output-type");
-        command.add("pdfa");
+        command.add(outputFormat.toString());
         command.add(tempInputFile.toString());
         command.add(tempOutputFile.toString());
 
diff --git a/src/main/java/stirling/software/SPDF/model/api/converters/PdfToPdfARequest.java b/src/main/java/stirling/software/SPDF/model/api/converters/PdfToPdfARequest.java
new file mode 100644
index 00000000..59535314
--- /dev/null
+++ b/src/main/java/stirling/software/SPDF/model/api/converters/PdfToPdfARequest.java
@@ -0,0 +1,17 @@
+package stirling.software.SPDF.model.api.converters;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import stirling.software.SPDF.model.api.PDFFile;
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class PdfToPdfARequest extends PDFFile {
+
+    @Schema(
+            description = "The output PDF/A type",
+            allowableValues = {"pdfa", "pdfa-1"})
+    private String outputFormat;
+}
diff --git a/src/main/resources/templates/convert/pdf-to-pdfa.html b/src/main/resources/templates/convert/pdf-to-pdfa.html
index 6494cf9c..6f558a1e 100644
--- a/src/main/resources/templates/convert/pdf-to-pdfa.html
+++ b/src/main/resources/templates/convert/pdf-to-pdfa.html
@@ -17,6 +17,13 @@
               <p th:text="#{pdfToPDFA.tip}"></p>
               <form method="post" enctype="multipart/form-data" th:action="@{api/v1/convert/pdf/pdfa}">
                 <div th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false, accept='application/pdf')}"></div>
+					<div class="mb-3">
+						<label th:text="#{pdfToPDFA.outputFormat}"></label>
+						<select class="form-control" name="outputFormat">
+							<option value="pdfa-1">PDF/A-1b</option>
+							<option value="pdfa">PDF/A-2b</option>
+						</select>
+					</div>
                 <br>
                 <button type="submit" id="submitBtn" class="btn btn-primary" th:text="#{pdfToPDFA.submit}"></button>
               </form>
@@ -28,4 +35,4 @@
       <th:block th:insert="~{fragments/footer.html :: footer}"></th:block>
     </div>
   </body>
-</html>
\ No newline at end of file
+</html>