Update kfxdedrm as suggested in #440

DeDRM_plugin/ineptpdf.py

@@ -2042,7 +2042,7 @@ class PDFParser(PSStackParser):
         except PDFNoValidXRef:
             # fallback
             self.seek(0)
-            pat = re.compile(rb'^(\\d+)\\s+(\\d+)\\s+obj\\b')
+            pat = re.compile(br'^(\\d+)\\s+(\\d+)\\s+obj\\b')
             offsets = {}
             xref = PDFXRef()
             while 1:

DeDRM_plugin/kfxdedrm.py

@@ -74,7 +74,7 @@ class KFXZipBook:
             # Belt and braces. PIDs should be unicode strings, but just in case...
             if isinstance(pid, bytes):
                 pid = pid.decode('ascii')
-            for dsn_len,secret_len in [(0,0), (16,0), (16,40), (32,40), (40,0), (40,40)]:
+            for dsn_len,secret_len in [(0,0), (16,0), (16,40), (32,0), (32,40), (40,0), (40,40)]:
                 if len(pid) == dsn_len + secret_len:
                     break       # split pid into DSN and account secret
             else:

Other_Tools/Tetrachroma_FileOpen_ineptpdf/ineptpdf_fileopen.pyw

@@ -2643,7 +2643,7 @@ class PDFParser(PSStackParser):
         except PDFNoValidXRef:
             # fallback
             self.seek(0)
-            pat = re.compile(rb'^(\d+)\s+(\d+)\s+obj\b')
+            pat = re.compile(br'^(\\d+)\\s+(\\d+)\\s+obj\\b')
             offsets = {}
             xref = PDFXRef()
             while 1: