Watermark opacity and animated gif

[n0_namer]

Hello.

I'm newbie in IM. I'm using this script in order to place watermark.png on animated gif. (Windows 10 x64 and IM 7.0.4-Q16)

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set INDIR=d:\
set OUTDIR=d:\LOGO

for /F "usebackq" %%F in (`dir /b %INDIR%\*.gif`) do (
  magick "%INDIR%\%%F" -gravity SouthEast null: watermark.png -layers composite "%OUTDIR%\%%~nxF"
  
  rem del /Q "%INDIR%\%%F"
)

Is there any way to change watermark.png opacity? I was trying to use -watermark 30%%, but got "unrecognized option "-watermark"" error. Thanks.

[snibgo]

Instead of ...

Code: Select all

watermark.png

... you can have something like:

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( watermark.png -alpha set -channel A -evaluate multiply 0.3 +channel )

[n0_namer]

Thank you very much, snibgo.

Instead of ...

Code: Select all

watermark.png

... you can have something like:

Code: Select all

( watermark.png -alpha set -channel A -evaluate multiply 0.3 +channel )

[snibgo]

I've removed a duplicate post, and moved the topic to Users,