[Poppler-bugs] [Bug 7488] New: Widgets are not recognized as links

[bugzilla-daemon at annarchy.freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=7488          
     
           Summary: Widgets are not recognized as links
           Product: poppler
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: general
        AssignedTo: poppler-bugs at lists.freedesktop.org
        ReportedBy: kkowalczyk at gmail.com


Download "How to be creative" PDF from
http://www.changethis.com/6.HowToBeCreative
(http://www.changethis.com/6.HowToBeCreative/download/?screen=0&action=download_manifesto)

Notice that poppler only sees a small subset of links of those that Acrobat
Reader does (e.g. only one on the 1st page while there 10).

The reason is that poppler only recognized links for "Links" PDF annotations
while "Widget" PDF annotation is also a valid link (see PDF reference 1.6, page
581. A simple change below fixes that.

Index: poppler/Link.cc
===================================================================
--- poppler/Link.cc     (revision 17)
+++ poppler/Link.cc     (working copy)
@@ -861,7 +861,8 @@
   if (annots->isArray()) {
     for (i = 0; i < annots->arrayGetLength(); ++i) {
       if (annots->arrayGet(i, &obj1)->isDict()) {
-       if (obj1.dictLookup("Subtype", &obj2)->isName("Link")) {
+       if (obj1.dictLookup("Subtype", &obj2)->isName("Link") ||
+        obj1.dictLookup("Subtype", &obj2)->isName("Widget")) {
          link = new Link(obj1.getDict(), baseURI);
          if (link->isOk()) {
            if (numLinks >= size) {          
     
     
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