From 1f56d242fffeffdb2a892e94e16e36eb2e4e1277 Mon Sep 17 00:00:00 2001
From: Yury Delendik <ydelendik@mozilla.com>
Date: Mon, 5 Nov 2012 11:12:17 -0600
Subject: [PATCH] Adds basic PDF info
---
src/core.js | 15 ++++++++++++++-
web/viewer.js | 5 +++++
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/src/core.js b/src/core.js
index b9e472e94..bd9ff7da2 100644
--- a/src/core.js
+++ b/src/core.js
@@ -495,6 +495,17 @@ var PDFDocument = (function PDFDocumentClosure() {
if (find(stream, '%PDF-', 1024)) {
// Found the header, trim off any garbage before it.
stream.moveStart();
+ // Reading file format version
+ var MAX_VERSION_LENGTH = 12;
+ var version = '', ch;
+ while ((ch = stream.getChar()) > ' ') {
+ if (version.length >= MAX_VERSION_LENGTH) {
+ break;
+ }
+ version += ch;
+ }
+ // removing "%PDF-"-prefix
+ this.pdfFormatVersion = version.substring(5);
return;
}
// May not be a PDF file, continue anyway.
@@ -519,7 +530,9 @@ var PDFDocument = (function PDFDocumentClosure() {
if (this.xref.trailer.has('Info')) {
var infoDict = this.xref.trailer.get('Info');
- docInfo = {};
+ docInfo = {
+ PDFFormatVersion: this.pdfFormatVersion
+ };
var validEntries = DocumentInfoValidators.entries;
// Only fill the document info with valid entries from the spec.
for (var key in validEntries) {
diff --git a/web/viewer.js b/web/viewer.js
index d69f1f4c7..fcbabd0db 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -1277,6 +1277,11 @@ var PDFView = {
self.documentInfo = info;
self.metadata = metadata;
+ // Provides some basic debug information
+ console.log('PDF ' + pdfDocument.fingerprint + ' [' +
+ info.PDFFormatVersion + ' ' + (info.Producer || '-') +
+ ' / ' + (info.Creator || '-') + ']');
+
var pdfTitle;
if (metadata) {
if (metadata.has('dc:title'))