vault backup: 2025-09-20 12:47:05

automating-pdf-annotation.md

@@ -10,7 +10,29 @@ tags:
 
 See [[portable-tools]] for valid dependencies.
 
-## Bluebeam Revu Measure Hack
+## Clean Documents
+
+### Page Rotation
+
+Pages have a rotation value independent of appearance
+which rotates the drawing reference grid.
+This must be resolved before further processing.
+
+Trivial coordinate-returning tools/functions
+may use the non-rotation-adjusted values,
+which are essentially useless for our purposes.
+
+MuPDF and similar libraries provide functions
+to return the "visual" (read _correct_) coordinates,
+but it would be ideal to redraw content with the correct orientation.
+
+## Extract Bluebeam Markups
+
+Right now I'm exporting Bluebeam markups to csv before processing,
+however if I converted to the code to extract the markups directly with MuPDF.Net
+as I've managed before with itext, that could save a step.
+
+### Bluebeam Revu Measure Hack
 
 BlueBeam Revu give coordinates for count annotations,
 even where count = 1.
@@ -37,20 +59,6 @@ Bluebeam's .bax is a annotation interchange format based on xml
     > [!menu]
     > Markups List > Markups > Import
 
-## Clean Documents
-
-### Page Rotation
-
-Pages have a rotation value independent of appearance
-which rotates the reference grid.
-This must be resolved before further processing.
-
-## Extract Bluebeam Markups
-
-Right now I'm exporting Bluebeam markups to csv before processing,
-however if I converted to the code to extract the markups directly with MuPDF.Net
-as I've managed before with itext, that could save a step.
-
 ## PDF Content Positional Tokenization
 
 Recursively parse and consume pdf vector content.