SnapPress

A desktop application for compressing JPEG and PNG photos without visible quality loss. Built with Python and customtkinter.

Features

• Batch compression (multiple files at once)
• Adjustable quality slider (1–95%)
• Progress bar with live feedback
• Savings summary (before / after)
• Saves compressed files next to originals — originals are never overwritten
• Settings menu with custom output folder and adjustable thumbnail size

Screenshots

Requirements

• Python 3.10+
• Pillow

Installation

Universal (Windows, macOS, Linux)

1. Clone the repository:

git clone https://github.com/Sebian12/SnapPress.git
cd SnapPress

2. Install dependencies:

pip install Pillow customtkinter CTkMessagebox

3. Run the app:

python main.py

Windows only

1. Download .exe file from current release or Apertix website.

Usage

1. Click Choose photos to select files
2. Adjust the quality slider (default: 80%)
3. Click Compress and save
4. Compressed files are saved in the same folder as the originals with a _compressed suffix or saved in selected folder

Roadmap

• Switch from tkinter to customtkinter
• Dark mode (1.2.0)
• Settings menu (1.3.0)
• Custom output folder (1.4.0)
• Settings saver (1.5.0)
• File counter (1.5.0)
• Button to clear photo list or single photo (1.5.0)
• Compressed file size next to file name (1.6.0)
• Thumbnails of photos (1.7.0)
• App logo (1.7.1)
• User set thumbnail size (1.7.2)
• Optimization (1.8.0)
• EXIF metadata preservation (1.9.0)
• Granular metadata control in settings (only GPS data checkbox) (1.10.0)
• More metadata control in settings (1.11.0)
• New file format support (1.12.0)
• Pack compressed photos to zip (1.13.0)
• Multithreading (planned)
• Drag & Drop support (planned)

Part of the Apertix ecosystem

App	Platform	Language
SnapPress	Windows / Linux / Web	Python / JavaScript
SnapPress Android	Android	Kotlin
SnapRename	Windows	C#
SnapRename Android (planned)	Android	Kotlin

Tech stack

• Python 3.14
• customtkinter — GUI
• Pillow — image processing
• CTkMessageBox

License

MIT