PicTools — Compress & Resize (iPhone) from BT Studio
A lightweight, free iPhone app for adjusting image size and file weight. PicTools from BT Studio speeds up photo optimization and makes it simple to prepare images for sharing, storage, or web use.
What it does
PicTools provides fast, on-device tools to change your pictures’ dimensions and file size without a complicated workflow. It supports a variety of resizing approaches and includes basic editing controls so you can refine the frame and orientation before exporting.
Main capabilities
- Crop and rotate pictures with a few taps to get the exact composition and alignment you want.
- Choose between percentage-based scaling, fixed aspect ratios, or manual scale adjustments to reach the desired dimensions.
- Reduce file size and optimize images for quicker uploads or more efficient storage.
- Convert images into common output formats, including JPEG-XR, PNG, and standard JPEG, depending on your needs.
Image quality and processing
PicTools uses high-quality resampling methods to preserve visual detail as much as possible when images are resized. The app aims to deliver realistic-looking results by minimizing artifacts and maintaining sharpness during downscaling or upscaling.
Supported files and exports
The app accepts most photo and graphic file types you’re likely to encounter on an iPhone and can export images in several popular formats. Output options include:
- PNG for lossless images with transparency.
- JPEG for broadly compatible, compressed photos.
- JPEG-XR for higher-efficiency compression with good visual fidelity.
Quick workflow
- Open a photo, pick a resizing mode (percentage, aspect ratio, or scale), and apply it.
- Make any final framing adjustments using the crop and rotate tools.
- Choose an export format and save or share the optimized image.
PicTools is geared toward users who want a straightforward, high-quality way to resize and convert images on their iPhone without a steep learning curve.
Technical
- iPhone
- Full