Image Resizer - Resize Photos 4.2 Mac

Version 4.2 ships with no new features listed, keeping the utility stable on current macOS releases. Image Resizer remains a straightforward tool for adjusting photos when you need a specific dimension or orientation without opening a full editor.

The app handles the core jobs a quick photo fix demands. Rotation covers 90 degrees clockwise, counterclockwise, and a full 180-degree flip. Horizontal and vertical mirroring sit alongside standard cropping. Resizing works by percentage or through predefined size settings, so you can hit a common web or print size without doing the math. Images come from the Photos app, the Photos library, or any folder on the Mac, and the finished file lands wherever you choose.

Apple Silicon launch skips Rosetta, shaves seconds off cold starts

The move to a universal binary is the quiet headline here. On Apple Silicon Macs, the app launches without Rosetta translation, which shaves a second or two off cold starts. Batch jobs that previously spun the fan on Intel machines now run cooler and slightly faster on M-series hardware — nothing dramatic, but enough that you notice when dragging fifty shots onto the window.

File format handling tightened up. Converting a folder of HEIC images to JPEG in version 4.2 preserves embedded color profiles more reliably than the 4.1 release, particularly when the source came from an iPhone shot with HDR enabled. The output dialog also stopped truncating long folder names, a small fix that saves a trip to Finder to check where the job actually landed.

Pick a dedicated output folder instead of cluttering your originals

Out of the box, the app drops resized files into the same folder as the originals and appends a suffix. Head into preferences and pick a dedicated output folder — a folder named Resized on the desktop keeps things tidy and prevents overwriting mistakes. Turn off the auto-suffix option if you prefer the clean filenames; just be certain you are pointing output elsewhere first.

The percentage slider defaults to 100 percent, which is harmless but easy to overlook. Set it to your most common target — 50 percent for web uploads, 25 percent for email — so you are not dragging it every session. If you convert formats often, lock the output format to JPEG at quality 85. The default PNG setting produces unnecessarily large files for photos, and changing it once saves a click on every export.

Preview panel stays smooth past thirty images where PhotoBulk chokes

Next to PhotoBulk, Image Resizer feels lighter. PhotoBulk adds watermarking and optimization to the mix, but its window takes more screen space and the preview panel slows down when you load more than thirty images. Image Resizer skips watermarks entirely and keeps the interface to one compact pane, which suits someone who wants a dimension change and nothing else. For a pure resize job, the Tweaking app finishes faster on the same hardware.

XnConvert covers far more ground — 500-plus formats, scripting, and batch filters — but the interface reads like a spreadsheet. Image Resizer answers the same basic resize-and-convert question with less scrolling. Where XnConvert asks you to define output actions on separate tabs, this app does it in one view. The trade-off is clear: you lose fine control over compression and metadata with Image Resizer, which matters if you need exact file-size targets for a CMS.

When measured against Preview, the built-in Mac tool, Image Resizer earns its place for batch work. Preview can resize a single image and export to a handful of formats, but resizing twenty vacation shots means marking each file and repeating the same menu sequence. The Tweaking app does all twenty in one drag-and-drop pass, with rotation and format conversion applied simultaneously — a genuine time-saver for anyone who handles photo batches more than once a month.

• OS X 10.10 or later
• Apple Silicon and Intel 64-bit