COMMAND LINE IMAGE RESIZE MAC PORTABLE
COMMAND LINE IMAGE RESIZE MAC PC
COMMAND LINE IMAGE RESIZE MAC DOWNLOAD
COMMAND LINE IMAGE RESIZE MAC MAC

#crop intermediate image (with target ratio)Ĭonvert $): ' Local inter_w=$(math 'int(round($src_h*$ratio))') # calculate 'intermediate' width and height # read target width and height from function parameters # We'll create a simple function that handles math for us.Įcho $(python -c 'from _future_ import division print To make our script short and nice, here is the 'save()' function. # Unfortunately, bash is awful at math operations.

COMMAND LINE IMAGE RESIZE MAC PC

# * python - I'm sure your PC already has it! # This script takes one 'source' image and saves it in different sizes. # Output JPG quality: maximum is 100 (recommended) # Gravity is for cropping left/right edges for different proportions (center, east, west) # If you frequently use the same signature file (e.g. # Destination must include '%', it will be replaced by output size, e.g. '~/Desktop/Some_folder/%.jpg'), set it in 'default_dst' # If you frequently use the same destination # If you frequently use the same source file (e.g. # Please note the format: each size is wrapped with quotes, width and height are separated with space.

COMMAND LINE IMAGE RESIZE MAC DOWNLOAD

Of course, you can also download it from GitHub.

Follow instructions, sit back and enjoy!.

Open Terminal, navigate to this folder, and execute the following command: bash resize.sh.

Edit the file and set default values for variables (optional).

Save resize.sh to any folder on your computer.

python - I’m sure your PC already has it installed!.

For a better understanding, please look through the comments in source code. Then it resizes source image into every output size, applying a signature.

Destination path (path must include the % symbol, which will be replaced by output size, i.e.

It takes the following parameters (from either you or from default values): However, with a bit of patience, you will find that it’s actually a very powerful tool.īelow is the bash script I wrote, simplified for more universal usage. If you have never worked with command line before, it all might look scary at first.

COMMAND LINE IMAGE RESIZE MAC PORTABLE

Portable - I can save images on my server as well as my main computer.Easy to maintain - changing folders is as easy as changing one variable.Easy to expand - adding new sizes takes only one line of code.However, after switching to command line, I never looked back at Photoshop for batch resizing. Unless you are a server administrator, you probably never thought of resizing images using command line.

COMMAND LINE IMAGE RESIZE MAC MAC

The solution I found is ImageMagick - a command-line image manipulation program, available for Windows, Mac and Linux. However, it’s not easy to learn at all, and I also wanted to completely remove Photoshop from process. When writing a script, you use a programming language to tell Photoshop what to do (compared to actions, where Photoshop records what you do with mouse and keyboard). Photoshop provides a more powerful tool - scripting language (it’s not the same as “actions”, though the concept is similar). Long ago, I used Photoshop actions to save multiple sizes from a source file, but it quickly became a nightmare to maintain. Responsive Image Container: A Way Forward For Responsive Images?.Leaner Responsive Images With Client Hints.Automatically Art-Directed Responsive Images? Here You Go.On the other hand, I do not want to spend the rest of my life resizing my artworks - I’d rather draw new ones! Further Reading on SmashingMag: On my own wallpapers website ( Vladstudio), I generate more than 300 JPEG files for each wallpaper! I want my art to reach as many devices as possible, which means I need to publish my wallpapers in as many sizes as I can support. However, keeping a Photoshop action up-to-date is quite painful - change a source folder, and you’re screwed.Īs you probably noticed in Smashing Magazine’s monthly desktop wallpaper series, especially if you work on wallpapers, preparing them for a plethora of desktop resolutions is quite a task.

If you own Adobe Photoshop and do not save too many output sizes, Photoshop actions are probably quite enough for your needs. If you deal with images, sooner or later you will want to automate the repeating process of saving different sizes from one source image.

Command line image resize mac