GetInfo summary #2388 (#3585)

# Description of Changes

Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

Co-authored-by: a <a>

src/main/java/stirling/software/SPDF/controller/api/security/GetInfoOnPDF.java

@@ -91,6 +91,59 @@ public class GetInfoOnPDF {
         }
     }
 
+    /**
+     * Generates structured summary data about the PDF highlighting its unique characteristics such
+     * as encryption status, permission restrictions, and standards compliance.
+     *
+     * @param document The PDF document to analyze
+     * @return An ObjectNode containing structured summary data
+     */
+    private ObjectNode generatePDFSummaryData(PDDocument document) {
+        ObjectNode summaryData = objectMapper.createObjectNode();
+
+        // Check if encrypted
+        if (document.isEncrypted()) {
+            summaryData.put("encrypted", true);
+        }
+
+        // Check permissions
+        AccessPermission ap = document.getCurrentAccessPermission();
+        ArrayNode restrictedPermissions = objectMapper.createArrayNode();
+
+        if (!ap.canAssembleDocument()) restrictedPermissions.add("document assembly");
+        if (!ap.canExtractContent()) restrictedPermissions.add("content extraction");
+        if (!ap.canExtractForAccessibility()) restrictedPermissions.add("accessibility extraction");
+        if (!ap.canFillInForm()) restrictedPermissions.add("form filling");
+        if (!ap.canModify()) restrictedPermissions.add("modification");
+        if (!ap.canModifyAnnotations()) restrictedPermissions.add("annotation modification");
+        if (!ap.canPrint()) restrictedPermissions.add("printing");
+
+        if (restrictedPermissions.size() > 0) {
+            summaryData.set("restrictedPermissions", restrictedPermissions);
+            summaryData.put("restrictedPermissionsCount", restrictedPermissions.size());
+        }
+
+        // Check standard compliance
+        if (checkForStandard(document, "PDF/A")) {
+            summaryData.put("standardCompliance", "PDF/A");
+            summaryData.put("standardPurpose", "long-term archiving");
+        } else if (checkForStandard(document, "PDF/X")) {
+            summaryData.put("standardCompliance", "PDF/X");
+            summaryData.put("standardPurpose", "graphic exchange");
+        } else if (checkForStandard(document, "PDF/UA")) {
+            summaryData.put("standardCompliance", "PDF/UA");
+            summaryData.put("standardPurpose", "universal accessibility");
+        } else if (checkForStandard(document, "PDF/E")) {
+            summaryData.put("standardCompliance", "PDF/E");
+            summaryData.put("standardPurpose", "engineering workflows");
+        } else if (checkForStandard(document, "PDF/VT")) {
+            summaryData.put("standardCompliance", "PDF/VT");
+            summaryData.put("standardPurpose", "variable and transactional printing");
+        }
+
+        return summaryData;
+    }
+
     public static boolean checkForStandard(PDDocument document, String standardKeyword) {
         // Check XMP Metadata
         try {
@@ -191,6 +244,12 @@ public class GetInfoOnPDF {
             }
             jsonOutput.set("FormFields", formFieldsNode);
 
+            // Generate structured summary data about PDF characteristics
+            ObjectNode summaryData = generatePDFSummaryData(pdfBoxDoc);
+            if (summaryData != null && summaryData.size() > 0) {
+                jsonOutput.set("SummaryData", summaryData);
+            }
+
             // embeed files TODO size
             if (catalog.getNames() != null) {
                 PDEmbeddedFilesNameTreeNode efTree = catalog.getNames().getEmbeddedFiles();