A detailed walkthrough of Aspecta's interface—every panel, every control, and what it all does.

Loading an Image

The center of the window is a drop zone. Drag any supported image file from File Explorer and drop it there. Aspecta will load the image and display a live preview immediately. The preview resizes dynamically to match whatever output aspect ratio you've selected, so you always see exactly what the final result will look like.

You can also double-click the drop zone to open a standard file dialog. Same result, different gesture—whatever feels more natural to you.

Clipboard Paste

If you have an image on the clipboard—say, a screenshot you just took with the Snipping Tool—press Ctrl+V and Aspecta will load it directly. No need to save it to a file first. This is handy when you want to quickly crop or convert a screenshot without cluttering your desktop with temporary files.

You may also right-click the drop zone to access a context menu with additional options.

Multi-File Batch Processing

Aspecta handles multiple files at once. You can drag several image files onto the drop zone, or drop them on a desktop shortcut to Aspecta, and they will all be processed in one go.

If you have previously configured and saved your conversion settings (format, quality, aspect ratio, and so on), Aspecta batch-converts all the files silently using those settings. No window appears—the files are just converted and saved. If no saved settings exist yet, Aspecta will prompt you to configure them first, then process the batch.

This makes it easy to set up a workflow: configure your preferred settings once through the GUI, then just keep dropping files on the shortcut whenever you need them converted.

Crop and Resize

The left panel contains the aspect ratio list. This includes standard ratios (16:9, 4:3, 1:1, 3:2, and others), fixed pixel sizes (1920x1080, 1280x720, etc.), and social media presets for platforms like Instagram, Facebook, YouTube, and X/Twitter. Sizes larger than the source image are automatically filtered out of the list, so you won't accidentally upscale.

Fit Mode

When you select Fit Within, Aspecta resizes your image so that it fits entirely within the target dimensions. No pixels are lost—the entire image is preserved. The result may be smaller than the target size if the aspect ratios don't match exactly. Think of it like fitting a painting into a frame without cutting anything off.

Fill Mode

When you select Fill To Brim, Aspecta resizes your image so that it completely covers the target dimensions, then crops the excess. This guarantees the output is exactly the target size, but some of the image will be trimmed. The orientation grid (described below) lets you control which part of the image is kept.

The Orientation Grid

The orientation grid is a 3x3 set of cells that only becomes active in Fill mode. It controls which part of the image is kept when cropping. Click the center cell to keep the middle of the image. Click the top-left cell to anchor the crop to the top-left corner, and so on. This is much more intuitive than dragging crop handles—you just tell Aspecta which region matters most and it handles the math.

Adjustments

The adjustments panel provides three controls:

• Hue slider—shifts all colors in the image around the color wheel. A small shift can warm up or cool down a photo; a large shift produces dramatic color transformations.
• Saturation slider—controls how vivid the colors are. Slide it up for more punch, down for a muted look.
• Grayscale checkbox—when checked, this automatically sets the saturation to zero and saves your previous saturation value. Uncheck it and the previous value is restored, so you can toggle back and forth without losing your setting. It will also cause your image to be saved in a grayscale format if the output supports it.

Output

The output panel lets you choose the target format from a dropdown list. For lossy formats like JPEG and WebP, the Detail Preservation slider controls the compression level. Lower values mean smaller files but more visible artifacts.

Below the Detail Preservation slider, the estimated file size updates in real time as you adjust settings. This estimate is accurate because Aspecta actually encodes the image in memory to calculate it—it's not a rough guess. You can dial in exactly the tradeoff between quality and file size you want before saving.

The bit depth slider lets you reduce the color depth of your output image. Its maximum is automatically set from the source image—you can reduce depth but never increase it, because you can't add color information that wasn't captured in the original.

Saving

Two buttons handle saving:

• Convert—saves the output to the same folder as the original file, using the original filename with the new format's extension. Quick and simple.
• Convert As—opens a standard save dialog so you can choose a different location or filename.

In both cases, the original file is never modified. Aspecta always creates a new file.

When you're working with a pasted clipboard image, the buttons switch to Save and Save As instead, since there's no original file to "convert" alongside.

Settings Persistence

Aspecta remembers your conversion settings between sessions. Whenever you convert an image, your current choices—format, aspect ratio, quality, crop mode, and color adjustments—are saved to the Windows Registry. The next time you launch Aspecta, those settings are automatically restored so you can pick up right where you left off.

This is what makes batch processing so smooth. Configure your settings once, and every subsequent file you drop on Aspecta gets the same treatment without any extra clicks. If you ever want to clear your saved settings and start fresh, pass -Reset on the command line.

Watermarks

Aspecta allows you to add watermarks to your images during conversion. A visible watermark appears in the bottom-right corner of the image. An EXIF watermark is embedded in the image's metadata and isn't visible when viewing the image, but can be read by software that supports EXIF data. (Note that this kind of watermark can be easily removed by anyone who knows how to edit EXIF data, so it's not a secure way to protect your images. It's more of a "soft" watermark for attribution rather than a "hard" watermark for copyright enforcement.) You can enable either or both types of watermarks in the settings panel.