Comparison Profile

Filters and optimizations

Text recovery

Some PDF files have a missing character mapping. Such mapping is required to translate from the visual text to machine readable text. The usual effect is a correctly displayed document to with an apparently corrupt text in the comparison result. Furthermore the text is corrupted as well when copying & pasting from this document (with any reader application!).

As a solution this filter will rebuild and correct the character mapping by using optical character recognition. The accuracy depends on the amount of text with more text providing higher accuracy.

Comparison Profile

Filters and optimizations

Text recovery

Property

NameDescription
FILTERSAdd CMAPPATCH to the comma separated list to enable. The default value is disabled