Basic Image Compression

Zipic supports compressing multiple images and all images in specified folders. Currently supported formats include JPEG, PNG, WebP, GIF, HEIC, AVIF, TIFF, ICNS, PDF, JPEG-XL (JXL), with more formats planned.

General Steps

Follow these steps to compress images with Zipic:

1. Select a compression preset, or use the default preset. You can click the options button at any time to configure compression options.
2. Choose compression method: Select a method to start compression.
3. View compression results: Check the results in the history list. Click the thumbnail to see a comparison preview. The preview window supports directly adjusting compression strength to see the effect, so you can quickly adjust strength in the preview window if needed. See the View Compression Results section for details. If unsatisfied, repeat steps 1 and 2.

Tip

Usually, we click the Compression Settings button at the bottom left of the main window to select a preset or configure quick settings instead of opening the settings window.

Compression Presets

There are two ways to access compression preset operations:

1. Main window: Click the Compression Settings button at the bottom left of the main window to open the compression preset selection window
2. Settings window: Open the settings window and switch to the Image tab to manage all compression presets

In the compression preset window, you can:

• Select a preset: Click any preset in the list to switch to it
• Edit preset: Click the edit button next to a preset to modify its compression options
• Rename preset: Rename a preset in the edit preset window
• Favorite preset: Click the heart icon next to a preset to mark it as favorite for quick access
• Create new preset: Click the plus button at the top right of the window to create a new preset

Note

Free users can only create one new preset in addition to the default preset. Pro users can create multiple presets.

Edit Preset

When editing a preset, you can configure the following compression options in the popup:

The edit preset window supports the following operations:

• Rename preset: Modify the name in the preset name input field
• Configure compression options: Adjust compression level, save format, save location, size, and other options
• Save changes: Click the confirm button to save modifications

Compression Level

Set a reasonable compression level to balance image size and quality. We recommend level 2 or 3. Higher levels mean lower quality but smaller size.

Save To

Configure where to save the compressed images, whether replacing the original, saving to a specified folder, or adding a suffix. See Save Options for details.

Save Format

Set the target format for compression. Supports converting to JPEG, WebP, HEIC, AVIF, PNG, JPEG-XL (JXL) while compressing. See Compression Formats for details.

Resize

Set the target size for compressed images. By default, the original aspect ratio is maintained. Setting width will auto-adjust height and vice versa. See Resizing Images for details.

Tip

First-time users should start by setting the compression level and get familiar with the process. Other options can remain default.

Compression Methods

Zipic offers several ways to compress images:

Drag and Drop

Drag images or folders into the Zipic main window to compress them. Recommended

Raycast Extension

Use the Raycast extension to compress selected images or folders in Finder. Recommended

Drag to Notch

Drag valid files/directories, and a Notch area will appear in the center of the top of the screen. Drag files/directories into this area and release to trigger automatic compression. Recommended Pro

Paste Compression

Automatically detect and compress images or file directories from the clipboard when pasting. Recommended Pro

Main Window Button

Use the main window button to select images or folders for compression.

Menu Bar Button

Use the menu bar button to select images or folders for compression.

Finder Context Menu

Select Zipic from the Finder context menu to compress images.

URLScheme

Use Zipic’s URLScheme interface for compression. Shortcut Worth Trying

Tip

You can choose to compress single or multiple images, or even multiple folders.

Drag and Drop

Open the main window and drag images or folders from Finder or the desktop into it to compress.

Raycast Extension

See the article Using Raycast Extension for Image Compression.

Drag to Notch Compression Pro

Drag to Notch compression is an innovative feature introduced in Zipic 1.8, allowing you to compress images more quickly and intuitively.

How to use:

1. Enable the feature: Go to Settings → Workflow and enable “Drag to Notch for compression”.

2. Drag files/directories: Drag valid files/directories, and a Notch area will appear in the center of the top of the screen. Drag files/directories into this area and release to trigger automatic compression.
3. Auto compression: Zipic will automatically detect and compress the dragged files/directories using the currently selected preset compression options.

Paste Compression Pro

Paste Compression allows you to quickly compress images or directories from your clipboard.

Three methods to use Paste Compression:

1. Open the main window, right-click and select Paste to perform paste compression.
2. Press ⌘ + V to perform paste compression.
3. Select Paste from the Edit menu in the menu bar to perform paste compression.

Tip

The video demonstrates paste compression operations using the right-click menu, menu bar Edit-Paste, and keyboard shortcut.

Paste Compression automatically detects images or file directories in your clipboard and compresses them using your current compression settings. This feature is particularly useful when you want to quickly compress images from various sources without manually selecting them.

Main Window Button

Click the Open Images button at the top left of the main window to select images for compression. Supports multiple images and directories.

Menu Bar Button

Click the File menu in the menu bar and select Open Images to choose images for compression. Supports multiple images and directories. Pressing ⌘ + O also opens the selection window.

Finder Context Menu

This method supports selecting a single image. In Finder, right-click the image, choose Open With, and select Zipic to compress.

URLScheme

See Integrating Zipic Capabilities.

Post-Compression Actions

After compression, the main window displays the compression records, including image thumbnails, names, sizes before and after compression, status, and compression ratio.

View Compression Results

After compression, check if the results are satisfactory.

Comparison Preview Pro

Click the thumbnail to view the compression effects in the comparison preview window. Zipic Pro includes an enhanced image comparison view with the following features:

• Zoom: Zoom in to inspect details of both original and compressed images
• Pan: Pan around zoomed images to examine different areas
• Double-click to reset: Double-click to quickly reset zoom level
• Zoom control slider: Convenient zoom control slider at the bottom for easy adjustment
• Direct compression strength adjustment: Directly adjust the compression strength slider in the preview window to see the effect in real-time, making it easy to find the optimal compression settings

This makes it easy to compare before and after compression results side by side. If you only need to adjust compression strength, you can do it directly in the preview window without recompressing.

Open in Finder

You can also open Finder to preview the compressed images using macOS Quick Look.

Tip

Click the View in Finder button in the compression record to quickly locate the compressed image in Finder. Press Space in Finder to quickly preview the selected file.

Copy Images

Copy Button

Click the Copy Image button in the compression record to copy the image or path information.

Note

1. By default, the Copy Image button is not available. Enable it in Settings -> Workflow.

2. In the demo video, click the Copy Image button and paste the image in another application’s editing window by pressing ⌘ + V.

Drag and Drop

Each compression record in the main window can be dragged to any window that accepts images, like a note window or Finder window, equivalent to a quick copy action.

Clear Compression History

While Zipic does not persist compression records, we provide options to clear individual or all records for better user experience.

Clear Single Record

Click the Delete button at the right end of the compression record to delete the current record.

Clear All Records

Click the Clear All Records button in the sidebar of the main window, then confirm in the popup to delete all compression records.