pageinfo: fix “decimal.InvalidOperation: quantize result has too many digits”

And add new test case for this.

tests/resources/README.rst

@@ -31,6 +31,9 @@ In some cases they were converted from one image format to another without other
     *   - LinnSequencer.jpg, linn.pdf, linn.txt
         - `Wikimedia: LinnSequencer`_
         - Creative Commons BY-SA 3.0
+    *   - typewriter.png, 2400dpi.pdf
+        - `Wikimedia: Triumph typewrtier text Linzensoep`_
+        * Creative Commons BY-SA 2.5
 
 
 Files generated for this project
@@ -104,4 +107,6 @@ These test resources are assemblies from other previously mentioned files, relea
 
 .. _`Wikimedia: JPEG2000 Lichtenstein`: https://en.wikipedia.org/wiki/JPEG_2000#/media/File:Jpeg2000_2-level_wavelet_transform-lichtenstein.png
 
-.. _`Linux (Wikipedia Article)`: https://de.wikipedia.org/wiki/Linux 
+.. _`Linux (Wikipedia Article)`: https://de.wikipedia.org/wiki/Linux 
+
+.. _`Wikimedia: Triumph typewrtier text Linzensoep`: https://commons.wikimedia.org/wiki/File:Triumph.typewriter_text_Linzensoep.gif

tests/test_main.py

@@ -748,3 +748,9 @@ def test_ghostscript_pdfa_failure(spoof_no_tess_no_pdfa):
 def test_ghostscript_feature_elision(spoof_no_tess_pdfa_warning):
     check_ocrmypdf('ccitt.pdf', 'test_feature_elision.pdf',
                    env=spoof_no_tess_pdfa_warning)
+
+
+def test_very_high_dpi(spoof_tesseract_cache):
+    "Checks for a Decimal quantize error with high DPI, etc"
+    check_ocrmypdf('2400dpi.pdf', 'test_2400dpi.pdf',
+                   env=spoof_tesseract_cache)