pdm_uconv -h [-V] [-s] [-v] [-l | --list-code 
| --default-code | -L] [--cannon] [-x] [--to-callback | -c] [--from-callback | -i] [--fallback | --no-fallback] [-b] [-f] [--t] [--add-signature] [--remove-signature] [-o] [file ...]

-h
Opens the help menu.
-V
Prints the program version.
-s
Uses silent operation and suppresses messages.
-v
Displays the progress information of the utility.
-l
Lists all available encoding. The following are valid:
--list-code
Lists only the given encoding.
--default-code
Lists only the default encoding.
-L
Lists all available transliterators.
--cannon
Prints the list in cnvrtrs.txt(5) format.
-x
Runs the progress through transliteration.
--to-callback
callback
Uses callback on destination encoding.
-c
Omits invalid characters from the output.
--from-callback
callback
Uses callback on original encoding.
-i
Ignores invalid sequences in the input.
--callback
callback
Uses callback on both encoding.s.
-b
Specifies the block size.
Default:
4096
--fallback
Uses fallback mapping.
--no-fallback
Does not use fallback mapping.
-f
Sets theoriginal encoding.
-t
Sets the destination encoding.
--add-signature
Adds U+FEFF Unicode signature character (BOM).
--remove-signature
Removes U+FEFF Unicode signature character (BOM)
-o
Writes output to file.

From local charset to UTF-8
pdm_uconv -t utf-8 inputfile.txt > outputfile.txt
From specific charset (iso-2022-jp) to UTF-8
pdm_uconv -f iso-2022-jp -t utf-8 inputfile.txt > outputfile.txt
From UTF-8 to local charset
pdm_uconv -f utf-8 inputfile.txt > outputfile.txt
From UTF-8 to specific charset
pdm_uconv -f utf-8 -t iso-2022-jp inputfile.txt > outputfile.txt

substitute
skip
stop
escape
escape-icu
escape-java
escape-c
escape-xml
escape-xml-hex
escape-xml-dec
escape-unicode