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Fixes: WARNING: Could not execute identify to calculate DPI #54

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Fixes: WARNING: Could not execute identify to calculate DPI #54

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Fixes: WARNING: Could not execute identify to calculate DPI 
Output:
````
identify -format "%w %x %h %y
" "example.pdf"

list index out of range
WARNING: Could not execute identify to calculate DPI (try installing imagemagick?), so defaulting to 300dpi
````
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@rasa
rasa authored Nov 21, 2016
commit 0c526eaf593d0b0d87aad1ca83571e6ddf93a0b7
2 changes: 1 addition & 1 deletion pypdfocr/pypdfocr_gs.py
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Original file line number Diff line number Diff line change
Expand Up @@ -143,7 +143,7 @@ def _get_dpi(self, pdf_filename):
self.greyscale = greyscale

# Now, run imagemagick identify to get pdf width/height/density
cmd = 'identify -format "%%w %%x %%h %%y\n" "%s"' % pdf_filename
cmd = 'identify -format "%%w %%x %%h %%y\\n" "%s"' % pdf_filename
try:
out = subprocess.check_output(cmd, shell=True)
results = out.splitlines()[0]
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