Optimize images jpg png CentOS
Tác giả: Dương Nguyễn Phú Cường
Ngày đăng: 1 tuần trước
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ou want to make your site faster ? maybe it is then an idea to optimize and compress png or jpg images via your SSH Terminal. If you got a lots of images you can save many of bytes by just compress images without losing any quality and discrease your website page size. First we going to install jpegoptim + optipng
# yum install optipng
# yum install jpegoptim
How works optipng ?
How works optipng ?optipng file optipng [options] file optipng [options] input.png
jpegoptim file.jpeg
jpegoptim [options] file.jpeg
jpegoptim photo.jpeg
First we go check how fast is your website and what your page size is
- Check your site on: http://tools.pingdom.com/fpt/ - SAMPLE: 1.87s Load time / 2.3 MB Page size - Check where your most images are e.g /wp-content/ or /images/Now we gonna start optimize PNG & JPG/JPEG!
# cd /home/user/domains/domain.com/public_html/wp-content/uploads/ # all images in current directory: jpegoptim *.jpg # or jpegoptim */*.pg (all directories) or 1 image: jpegoptim image1.jpg # all images in current directory: optipng *.png # or optipng */*.png (all directories) or 1 image: optipng image1.pngMore information: http://freecode.com/projects/jpegoptim http://optipng.sourceforge.net/ find -type f -name "*.png" -exec optipng {} \; find -type f -name "*.jpg" -exec jpegoptim --strip-all {} \; find -type f -name "*.jpeg" -exec jpegoptim --strip-all {} \;
JPG optimization
cd /path/to/your/image/folder
find . -iname "*.jp*" -print0 | xargs -0 jpegoptim --strip-all -m76
PNG optimization
cd /path/to/your/image/folder
find . -iname '*.png' -print0 | xargs -0 optipng -o7 -preserve