getPdfInfo(@ModelAttribute PDFFile request) throws IOException {
+ MultipartFile inputFile = request.getFileInput();
+
+ // Validate input
+ try {
+ validatePdfFile(inputFile);
+ } catch (IllegalArgumentException e) {
+ log.error("Invalid PDF file: {}", e.getMessage());
+ return createErrorResponse("Invalid PDF file: " + e.getMessage());
+ }
+
+ boolean readonly = true;
+
+ try (PDDocument pdfBoxDoc = pdfDocumentFactory.load(inputFile, readonly)) {
+ ObjectNode jsonOutput = objectMapper.createObjectNode();
+
+ ObjectNode metadata = extractMetadata(pdfBoxDoc);
+ ObjectNode basicInfo = extractBasicInfo(pdfBoxDoc, inputFile.getSize());
+ ObjectNode docInfoNode = extractDocumentInfo(pdfBoxDoc);
+ ObjectNode compliancy = extractComplianceInfo(pdfBoxDoc);
+ ObjectNode encryption = extractEncryptionInfo(pdfBoxDoc);
+ ObjectNode permissionsNode = extractPermissions(pdfBoxDoc);
+ ObjectNode other = extractOtherInfo(pdfBoxDoc);
+ ObjectNode formFieldsNode = extractFormFields(pdfBoxDoc);
+
+ // Generate summary data
+ String pdfaConformanceLevel = getPdfAConformanceLevel(pdfBoxDoc);
+ Boolean pdfaValidationPassed = null;
+ if (pdfaConformanceLevel != null) {
+ pdfaValidationPassed = validatePdfAWithPreflight(pdfBoxDoc, pdfaConformanceLevel);
+ }
+ ObjectNode summaryData =
+ generatePDFSummaryData(pdfBoxDoc, pdfaConformanceLevel, pdfaValidationPassed);
+
+ // Extract per-page information
+ ObjectNode pageInfoParent = extractPerPageInfo(pdfBoxDoc);
+
+ // Assemble final JSON output
+ jsonOutput.set("Metadata", metadata);
jsonOutput.set("BasicInfo", basicInfo);
jsonOutput.set("DocumentInfo", docInfoNode);
jsonOutput.set("Compliancy", compliancy);
jsonOutput.set("Encryption", encryption);
- jsonOutput.set("Permissions", permissionsNode); // set the node under "Permissions"
+ jsonOutput.set("Permissions", permissionsNode);
+ jsonOutput.set("FormFields", formFieldsNode);
jsonOutput.set("Other", other);
jsonOutput.set("PerPageInfo", pageInfoParent);
- // Save JSON to file
+ if (summaryData != null && !summaryData.isEmpty()) {
+ jsonOutput.set("SummaryData", summaryData);
+ }
+
+ // Convert to JSON string
String jsonString =
objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(jsonOutput);
@@ -996,10 +1254,53 @@ public class GetInfoOnPDF {
"response.json",
MediaType.APPLICATION_JSON);
+ } catch (IOException e) {
+ log.error("IO error while processing PDF: {}", e.getMessage(), e);
+ return createErrorResponse("Error reading PDF file: " + e.getMessage());
} catch (Exception e) {
- log.error("exception", e);
+ log.error("Unexpected error while processing PDF: {}", e.getMessage(), e);
+ return createErrorResponse("Unexpected error processing PDF: " + e.getMessage());
}
- return null;
+ }
+
+ private ObjectNode extractBasicInfo(PDDocument document, long fileSizeInBytes) {
+ ObjectNode basicInfo = objectMapper.createObjectNode();
+
+ try {
+ basicInfo.put("FileSizeInBytes", fileSizeInBytes);
+
+ String fullText = new PDFTextStripper().getText(document);
+ String[] words = RegexPatternUtils.getInstance().getWhitespacePattern().split(fullText);
+ int paragraphCount =
+ RegexPatternUtils.getInstance()
+ .getMultiFormatNewlinePattern()
+ .split(fullText)
+ .length;
+
+ basicInfo.put("WordCount", words.length);
+ basicInfo.put("ParagraphCount", paragraphCount);
+ basicInfo.put("CharacterCount", fullText.length());
+
+ String language = document.getDocumentCatalog().getLanguage();
+ if (language != null) {
+ basicInfo.put("Language", language);
+ }
+ basicInfo.put("Number of pages", document.getNumberOfPages());
+
+ ImageStatistics imageStats = calculateImageStatistics(document);
+ basicInfo.put("TotalImages", imageStats.totalImages);
+ basicInfo.put("UniqueImages", imageStats.uniqueImages);
+
+ } catch (Exception e) {
+ log.error("Error extracting basic info: {}", e.getMessage());
+ }
+
+ return basicInfo;
+ }
+
+ private static class ImageStatistics {
+ int totalImages;
+ int uniqueImages;
}
private static String getPageModeDescription(String pageMode) {
diff --git a/app/core/src/main/resources/messages_en_GB.properties b/app/core/src/main/resources/messages_en_GB.properties
index eb75856d3..508dc4c45 100644
--- a/app/core/src/main/resources/messages_en_GB.properties
+++ b/app/core/src/main/resources/messages_en_GB.properties
@@ -1017,6 +1017,7 @@ getPdfInfo.summary.all.permissions.alert=All Permissions Allowed
getPdfInfo.summary.compliance.alert={0} Compliant
getPdfInfo.summary.no.compliance.alert=No Compliance Standards
getPdfInfo.summary.security.section=Security Status
+getPdfInfo.summary.technical.section=Technical Details
getPdfInfo.section.BasicInfo=Basic Information about the PDF document including file size, page count, and language
getPdfInfo.section.Metadata=Document metadata including title, author, creation date and other document properties
getPdfInfo.section.DocumentInfo=Technical details about the PDF document structure and version
diff --git a/app/core/src/main/resources/templates/security/get-info-on-pdf.html b/app/core/src/main/resources/templates/security/get-info-on-pdf.html
index 0b64bb679..4775de6d1 100644
--- a/app/core/src/main/resources/templates/security/get-info-on-pdf.html
+++ b/app/core/src/main/resources/templates/security/get-info-on-pdf.html
@@ -81,6 +81,29 @@
+
+
+
Technical Details
+
+
+
+ - Images: -
+ - Fonts: -
+ - Form Fields: -
+ - Embedded Files: -
+
+
+
+
+ - JavaScript: -
+ - Layers: -
+ - Bookmarks: -
+ - Multimedia: -
+
+
+
+
@@ -121,6 +144,7 @@
const getPdfInfoSummaryAllPermissionsAlert = /*[[#{getPdfInfo.summary.all.permissions.alert}]]*/ "All Permissions Allowed";
const getPdfInfoSummaryComplianceAlert = /*[[#{getPdfInfo.summary.compliance.alert}]]*/ "{0} Compliant";
const getPdfInfoSummaryNoComplianceAlert = /*[[#{getPdfInfo.summary.no.compliance.alert}]]*/ "No Compliance Standards";
+ const getPdfInfoSummaryTechnicalSection = /*[[#{getPdfInfo.summary.technical.section}]]*/ "Technical Details";
// Update the summary headings
document.addEventListener('DOMContentLoaded', function() {
@@ -128,6 +152,7 @@
document.getElementById('summary-basic-info-heading').textContent = getPdfInfoSummaryBasicInfo;
document.getElementById('summary-doc-info-heading').textContent = getPdfInfoSummaryDocInfo;
document.getElementById('summary-security-heading').textContent = getPdfInfoSummarySecuritySection;
+ document.getElementById('summary-technical-heading').textContent = getPdfInfoSummaryTechnicalSection;
});
// Pre-load section descriptions
@@ -141,6 +166,16 @@
const getPdfInfoSectionFormFields = /*[[#{getPdfInfo.section.FormFields}]]*/ "Interactive form fields present in the document";
const getPdfInfoSectionPerPageInfo = /*[[#{getPdfInfo.section.PerPageInfo}]]*/ "Detailed information about each page in the document";
+ /**
+ * Form submission handler for PDF info extraction.
+ *
+ * Process:
+ * 1. Submit PDF to backend endpoint
+ * 2. Receive JSON with sections: Metadata, BasicInfo, DocumentInfo, etc.
+ * 3. Populate summary section from the detailed data
+ * 4. Display all sections in collapsible cards
+ * 5. Provide JSON download option
+ */
document.getElementById("pdfInfoForm").addEventListener("submit", function(event) {
event.preventDefault();
@@ -154,14 +189,29 @@
fetchWithCsrf('api/v1/security/get-info-on-pdf', {
method: 'POST',
body: formData
- }).then(response => response.json()).then(data => {
+ }).then(response => {
+ if (!response.ok) {
+ throw new Error(`HTTP error! status: ${response.status}`);
+ }
+ return response.json();
+ }).then(data => {
+ // Check if response contains an error
+ if (data && data.error) {
+ console.error('Server error:', data.error);
+ alert('Error: ' + data.error);
+ return;
+ }
+
// Populate and display the enhanced PDF summary
populateSummarySection(data);
displayJsonData(data);
setDownloadLink(data);
document.getElementById("downloadJson").style.display = "block";
- }).catch(error => console.error('Error:', error));
+ }).catch(error => {
+ console.error('Error:', error);
+ alert('An error occurred while processing the PDF. Please try again.');
+ });
// Function to reset all summary elements to default state
function resetSummaryElements() {
@@ -177,6 +227,16 @@
document.getElementById('summary-created').textContent = '-';
document.getElementById('summary-modified').textContent = '-';
+ // Reset technical details fields
+ document.getElementById('summary-images').textContent = '-';
+ document.getElementById('summary-fonts').textContent = '-';
+ document.getElementById('summary-form-fields').textContent = '-';
+ document.getElementById('summary-embedded-files').textContent = '-';
+ document.getElementById('summary-javascript').textContent = '-';
+ document.getElementById('summary-layers').textContent = '-';
+ document.getElementById('summary-bookmarks').textContent = '-';
+ document.getElementById('summary-multimedia').textContent = '-';
+
// Reset security status cards
const cards = ['encryption-status', 'permissions-status', 'compliance-status'];
cards.forEach(id => {
@@ -208,12 +268,12 @@
resetSummaryElements();
// Get basic information
- if (data.BasicInfo) {
+ if (data && data.BasicInfo) {
document.getElementById('summary-pages').textContent = data.BasicInfo["Number of pages"] || "-";
// Format file size nicely
let fileSize = data.BasicInfo["FileSizeInBytes"];
- if (fileSize) {
+ if (fileSize && fileSize > 0) {
const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
const i = Math.floor(Math.log(fileSize) / Math.log(1024));
fileSize = (fileSize / Math.pow(1024, i)).toFixed(2) + ' ' + sizes[i];
@@ -224,18 +284,113 @@
}
// Get document information
- if (data.DocumentInfo) {
+ if (data && data.DocumentInfo) {
document.getElementById('summary-version').textContent = data.DocumentInfo["PDF version"] || "-";
}
// Get metadata
- if (data.Metadata) {
+ if (data && data.Metadata) {
document.getElementById('summary-title').textContent = data.Metadata["Title"] || "-";
document.getElementById('summary-author').textContent = data.Metadata["Author"] || "-";
document.getElementById('summary-created').textContent = data.Metadata["CreationDate"] || "-";
document.getElementById('summary-modified').textContent = data.Metadata["ModificationDate"] || "-";
}
+ // Populate technical details
+ if (data && data.BasicInfo) {
+ // Images
+ const totalImages = data.BasicInfo.TotalImages || 0;
+ const uniqueImages = data.BasicInfo.UniqueImages || 0;
+ if (totalImages > 0) {
+ document.getElementById('summary-images').textContent = `${totalImages} total (${uniqueImages} unique)`;
+ } else {
+ document.getElementById('summary-images').textContent = 'None';
+ }
+ }
+
+ // Count fonts from PerPageInfo
+ if (data && data.PerPageInfo) {
+ let totalFonts = 0;
+ let embeddedFonts = 0;
+ const fontSet = new Set();
+
+ for (const pageKey in data.PerPageInfo) {
+ const pageData = data.PerPageInfo[pageKey];
+
+ // Count fonts
+ if (pageData.Fonts && Array.isArray(pageData.Fonts)) {
+ pageData.Fonts.forEach(font => {
+ const fontKey = JSON.stringify([font.Name, font.Subtype]);
+ fontSet.add(fontKey);
+ if (font.IsEmbedded) {
+ embeddedFonts++;
+ }
+ });
+ }
+ }
+
+ // Display fonts
+ totalFonts = fontSet.size;
+ if (totalFonts > 0) {
+ document.getElementById('summary-fonts').textContent = `${totalFonts} (${embeddedFonts} embedded)`;
+ } else {
+ document.getElementById('summary-fonts').textContent = 'None';
+ }
+ }
+
+ // Form fields
+ if (data && data.FormFields) {
+ const formFieldCount = Object.keys(data.FormFields).length;
+ document.getElementById('summary-form-fields').textContent = formFieldCount > 0 ? formFieldCount : 'None';
+ }
+
+ // Other section data
+ if (data && data.Other) {
+ // Embedded files
+ const embeddedFiles = data.Other.EmbeddedFiles;
+ if (embeddedFiles && Array.isArray(embeddedFiles)) {
+ document.getElementById('summary-embedded-files').textContent = embeddedFiles.length > 0 ? embeddedFiles.length : 'None';
+ } else {
+ document.getElementById('summary-embedded-files').textContent = 'None';
+ }
+
+ // JavaScript
+ const javascript = data.Other.JavaScript;
+ if (javascript && Array.isArray(javascript)) {
+ document.getElementById('summary-javascript').textContent = javascript.length > 0 ? `Yes (${javascript.length} scripts)` : 'None';
+ } else {
+ document.getElementById('summary-javascript').textContent = 'None';
+ }
+
+ // Layers
+ const layers = data.Other.Layers;
+ if (layers && Array.isArray(layers)) {
+ document.getElementById('summary-layers').textContent = layers.length > 0 ? layers.length : 'None';
+ } else {
+ document.getElementById('summary-layers').textContent = 'None';
+ }
+
+ // Bookmarks
+ const bookmarks = data.Other["Bookmarks/Outline/TOC"];
+ if (bookmarks && Array.isArray(bookmarks)) {
+ document.getElementById('summary-bookmarks').textContent = bookmarks.length > 0 ? bookmarks.length : 'None';
+ } else {
+ document.getElementById('summary-bookmarks').textContent = 'None';
+ }
+ }
+
+ // Count multimedia from pages
+ if (data && data.PerPageInfo) {
+ let multimediaCount = 0;
+ for (const pageKey in data.PerPageInfo) {
+ const pageData = data.PerPageInfo[pageKey];
+ if (pageData.Multimedia && Array.isArray(pageData.Multimedia)) {
+ multimediaCount += pageData.Multimedia.length;
+ }
+ }
+ document.getElementById('summary-multimedia').textContent = multimediaCount > 0 ? multimediaCount : 'None';
+ }
+
// Update security status cards
// Encryption status
@@ -257,7 +412,7 @@
const permissionsText = document.getElementById('permissions-text');
let restrictedPermissions = [];
- if (data.Permissions) {
+ if (data && data.Permissions) {
for (const [permission, state] of Object.entries(data.Permissions)) {
if (state === "Not Allowed") {
restrictedPermissions.push(permission);
@@ -282,7 +437,7 @@
let hasCompliance = false;
let compliantStandards = [];
- if (data.Compliancy) {
+ if (data && data.Compliancy) {
for (const [standard, compliant] of Object.entries(data.Compliancy)) {
if (compliant === true) {
hasCompliance = true;
@@ -311,7 +466,7 @@
let hasSummaryInfo = false;
// Create a consolidated security details card if there are security details worth highlighting
- if ((data.Encryption && data.Encryption.IsEncrypted) ||
+ if ((data && data.Encryption && data.Encryption.IsEncrypted) ||
restrictedPermissions.length > 0 ||
hasCompliance) {
@@ -407,22 +562,22 @@
const summaryTextElement = document.getElementById('summary-text');
// Create a general summary for the document
- let generalSummary = `This is a ${data.BasicInfo["Number of pages"] || "multi"}-page PDF`;
+ let generalSummary = `This is a ${(data && data.BasicInfo && data.BasicInfo["Number of pages"]) ? data.BasicInfo["Number of pages"] : "multi"}-page PDF`;
- if (data.Metadata && data.Metadata["Title"]) {
+ if (data && data.Metadata && data.Metadata["Title"]) {
generalSummary += ` titled "${data.Metadata["Title"]}"`;
}
- if (data.Metadata && data.Metadata["Author"]) {
+ if (data && data.Metadata && data.Metadata["Author"]) {
generalSummary += ` created by ${data.Metadata["Author"]}`;
}
- if (data.DocumentInfo && data.DocumentInfo["PDF version"]) {
+ if (data && data.DocumentInfo && data.DocumentInfo["PDF version"]) {
generalSummary += ` (PDF version ${data.DocumentInfo["PDF version"]})`;
}
// Add security information to the general summary if relevant
- if (data.Encryption && data.Encryption.IsEncrypted) {
+ if (data && data.Encryption && data.Encryption.IsEncrypted) {
generalSummary += '. The document is password protected';
if (data.Encryption.EncryptionAlgorithm) {
@@ -443,42 +598,40 @@
generalSummary += `. This document complies with the ${compliantStandards.join(', ')} PDF standard${compliantStandards.length > 1 ? 's' : ''}`;
}
- generalSummary += '.';
+ // Add interesting technical details
+ const technicalFeatures = [];
- // Remove SummaryData from JSON to avoid duplication
- if (data.SummaryData) {
- delete data.SummaryData;
+ // Check for JavaScript
+ if (data && data.Other && data.Other.JavaScript && Array.isArray(data.Other.JavaScript) && data.Other.JavaScript.length > 0) {
+ technicalFeatures.push(`${data.Other.JavaScript.length} JavaScript script${data.Other.JavaScript.length > 1 ? 's' : ''}`);
}
+ // Check for embedded files
+ if (data && data.Other && data.Other.EmbeddedFiles && Array.isArray(data.Other.EmbeddedFiles) && data.Other.EmbeddedFiles.length > 0) {
+ technicalFeatures.push(`${data.Other.EmbeddedFiles.length} embedded file${data.Other.EmbeddedFiles.length > 1 ? 's' : ''}`);
+ }
+
+ // Check for layers
+ if (data && data.Other && data.Other.Layers && Array.isArray(data.Other.Layers) && data.Other.Layers.length > 0) {
+ technicalFeatures.push(`${data.Other.Layers.length} layer${data.Other.Layers.length > 1 ? 's' : ''}`);
+ }
+
+ // Check for form fields
+ if (data && data.FormFields && Object.keys(data.FormFields).length > 0) {
+ technicalFeatures.push(`${Object.keys(data.FormFields).length} form field${Object.keys(data.FormFields).length > 1 ? 's' : ''}`);
+ }
+
+ if (technicalFeatures.length > 0) {
+ generalSummary += `. The PDF contains ${technicalFeatures.join(', ')}`;
+ }
+
+ generalSummary += '.';
+
summaryTextElement.innerHTML = generalSummary;
// Display the summary section
document.getElementById('pdf-summary').style.display = 'block';
}
-
- function generateSummaryFromData(summaryData) {
- let summary = [];
-
- // Handle encryption information
- if (summaryData.encrypted) {
- summary.push(getPdfInfoSummaryEncrypted);
- }
-
- // Handle permissions information
- if (summaryData.restrictedPermissions && summaryData.restrictedPermissions.length > 0) {
- const formattedPermissionsText = getPdfInfoSummaryPermissions.replace('{0}', summaryData.restrictedPermissionsCount);
- summary.push(formattedPermissionsText);
- }
-
- // Handle standard compliance information
- if (summaryData.standardCompliance) {
- const formattedComplianceText = getPdfInfoSummaryCompliance
- .replace('{0}', summaryData.standardCompliance);
- summary.push(formattedComplianceText);
- }
-
- return summary.join(' ');
- }
});
function displayJsonData(jsonData) {