...

src/calibre/ebooks/pdf/render/engine.py

@@ -251,9 +251,11 @@ class PdfEngine(QPaintEngine):
             try:
                 self.pdf = PDFStream(self.file_object, (self.page_width,
                         self.page_height), compress=self.compress,
-                                     mark_links=self.mark_links)
+                                     mark_links=self.mark_links,
+                                     debug=self.debug)
             except:
                 self.errors(traceback.format_exc())
+                self.errors_occurred = True
                 return False
         return True
 
@@ -270,6 +272,7 @@ class PdfEngine(QPaintEngine):
             self.pdf.end()
         except:
             self.errors(traceback.format_exc())
+            self.errors_occurred = True
             return False
         finally:
             self.pdf = self.file_object = None
@@ -581,7 +584,7 @@ if __name__ == '__main__':
     QBrush, QColor, QPoint, QPixmap
     app = QApplication([])
     p = QPainter()
-    with open('/tmp/painter.pdf', 'wb') as f:
+    with open('/t/painter.pdf', 'wb') as f:
         dev = PdfDevice(f, compress=False)
         p.begin(dev)
         dev.init_page()

src/calibre/ebooks/pdf/render/links.py

@@ -47,7 +47,7 @@ class Links(object):
         for link in self.links:
             path, href, frag = link[0]
             page, rect = link[1:]
-            combined_path = os.path.abspath(os.path.join(path, *href.split('/')))
+            combined_path = os.path.abspath(os.path.join(os.path.dirname(path), *href.split('/')))
             is_local = not href or combined_path in self.anchors
             annot = Dictionary({
                 'Type':Name('Annot'), 'Subtype':Name('Link'),
@@ -76,6 +76,9 @@ class Links(object):
                 if 'Annots' not in page:
                     page['Annots'] = Array()
                 page['Annots'].append(self.pdf.objects.add(annot))
+            else:
+                self.pdf.debug('Could not find destination for link: %s in file %s'%
+                               (href, path))
 
     def add_outline(self, toc):
         parent = Dictionary({'Type':Name('Outlines')})

src/calibre/ebooks/pdf/render/serialize.py

@@ -281,7 +281,8 @@ class PDFStream(object):
         ( True,  True,  'evenodd')  : 'B*',
     }
 
-    def __init__(self, stream, page_size, compress=False, mark_links=False):
+    def __init__(self, stream, page_size, compress=False, mark_links=False,
+                 debug=print):
         self.stream = HashingStream(stream)
         self.compress = compress
         self.write_line(PDFVER)
@@ -298,6 +299,7 @@ class PDFStream(object):
         self.stroke_opacities, self.fill_opacities = {}, {}
         self.font_manager = FontManager(self.objects, self.compress)
         self.image_cache = {}
+        self.debug = debug
         self.links = Links(self, mark_links)
 
     @property