How to batch squash shrink optimize JPGs

[pedalracer]

Hello

I am a Windows 10 64bit user and spend again several hours to get up to speed with the latest ways to batch optimize JPGs for the web (ecommerce and Wordpress sites).

I am a very long time user of AcdSee (since V3), Irfanview and of course XNview. It would be absoulut ok to say that for the last 20 years when I set up a PC I installed right after a fresh OS setup Totalcommnder and the given three graphic viewers.

Anyhow
I ran again into problems yeserday to optimze my digital photos that come from a DSLR for a Wordpress site. I decided to resize all to a max width of 1920px. Then I wanted to optimize them for web use. Photoshop users know the "save for web" function. But let us not talk about Adobe. Xnview (not MP as far as I know) has in combination with the Riot.dll or .exe a similar function. Irfan too.
But I was not able to send a folder with subfolder to Riot's batch conversion with the option to override originals in subfolders.

What is the common method todays``?
Still local optimzation with Riot, Optpng etc. or do all use mostly commercial online tools?

[XnTriq]

XnView lets you shrink the filesize of JPEGs without re-encoding the image data (Edit » Metadata » Clean...):

• Optimize (Huffman table) *
• Remove
  • Comment
  • EXIF
  • XMP
  • EXIF thumbnail
  • IPTC
  • ICC Profile
  • Photoshop data *
  • All other 'APP' markers *

* Not available in Tools » Batch Processing... » Transformations » Image » Clean Metadata

[pedalracer]

Thank you for the very good link and the tip on cleaning meta data.