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Jeff Liebermann Jeff Liebermann is offline
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Default Confused about Frequency Counters

On Mon, 29 May 2017 00:08:29 -0400, rickman wrote:


I received a PDF document of an old PDP-11 listing from someone who wanted
help typing it in. I realized when I clicked my cursor over the text it
would select even though it was clearly created from images. Seems some
software in the path (possibly my reader) was doing optical character
recognition on the document. Most of it came through ok, but once in a
while the slightly out of adjustment printer characters would be misread
like a 9 for a 0, or a 0 for an O. Still, it saved a lot of time.

Anyone else see scanned documents showing selectable text?


Searchable text is a standard PDF feature, even with bitmapped text.
PDF-Xchange has built in OCR (optical character recognition) that will
read through the graphical text, do its best to convert it to ASCII
text, and save the combined file. After that, you can use the search,
select, edit, functions:
https://www.youtube.com/watch?v=CWtHOsIKaKw
https://www.tracker-software.com/knowledgebase/351-How-do-I-OCR-a-document
The free version will do all that except edit and save the resulting
text. For that, you need the registered version.

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