JPEG Converter for Windows — Convert JPEG Files in Batch

JPEG files are everywhere — product photos, scanned documents, camera shots, screenshots. When you need to convert dozens or hundreds of them to PNG, TIFF, BMP, PDF, or another format, doing it one by one in an image editor is not a real option. And when another application exports images in a format your workflow does not accept, you need a quick path to JPEG. Total Image Converter handles both directions: convert FROM JPEG to any major format, or TO JPEG from RAW, PNG, TIFF, BMP, GIF, and many others — in batch, in seconds.

What Is the JPEG Format

JPEG (Joint Photographic Experts Group) was defined in 1992 and remains the dominant format for photographic images. It uses Discrete Cosine Transform (DCT) compression, a lossy algorithm that discards fine detail imperceptible to the human eye. The result is files 5–15 times smaller than uncompressed equivalents, at the cost of some quality with each re-save.

JPEG stores color in 8 bits per channel (24-bit RGB total). It does not support an alpha channel, so transparency is not possible. Progressive JPEG encoding allows the image to load in stages — useful for web delivery. JPEG is supported natively by every browser, operating system, and image application, making it the default format for web photos, camera output, and email attachments.

The format has two common file extensions: .jpg and .jpeg. They are identical; the shorter form was required on older Windows systems that enforced a 3-character extension limit.

JPEG vs. Other Formats

JPEG is the right choice when file size matters more than pixel-perfect quality and transparency is not needed. For anything that requires a hard edge, text overlay, or transparency, PNG is the better target format. For print production or archiving, TIFF preserves every detail losslessly.

How to Convert JPEG Files in Batch

1. Download and install Total Image Converter. The 30-day trial is fully functional — no email or credit card required.
2. Open the program. In the left panel, navigate to the folder that contains your JPEG files (or the source images you want to convert TO JPEG). Thumbnails appear in the file list.
3. Select files: click one, Shift-click for a range, or press Ctrl+A to select all files in the folder. For batch conversion of an entire folder, use the Check All button.
4. Click the target format button in the toolbar. To convert FROM JPEG, click PNG, TIFF, BMP, PDF, or whichever format you need. To convert TO JPEG from another format, select the source files and click JPEG in the toolbar.
5. In the conversion options dialog, set JPEG quality (1–100), choose resize or crop parameters if needed, and add a watermark if required. For JPEG output, a quality setting of 85–90 is a good balance of file size and visual quality.
6. Set the output folder and click Start. All selected files are converted and saved. Original files remain untouched.

Command-Line JPEG Conversion

Total Image Converter includes a command-line interface for scripting, scheduled tasks, and server workflows. To convert all JPEG files in a folder to PNG:

TotalImageConverter.exe C:\Photos\*.jpg C:\Output -c png

To convert PNG files to JPEG with 85% quality:

TotalImageConverter.exe C:\Graphics\*.png C:\Output -c jpeg -jpegquality 85

Use these commands in a .bat file or a Windows Task Scheduler job to automate recurring conversions. The command-line version supports all the same options as the GUI: resize, crop, watermark, color adjustments, and rotation.

Why Use Total Image Converter

Batch conversion without manual work

Select a folder with 500 JPEG files, click PNG, and press Start. Total Image Converter processes every file in one run. You do not open files one by one, and you do not wait for one export to finish before starting the next. On a modern machine, 500 JPEG files convert to PNG in under two minutes.

Full control over JPEG quality

When converting to JPEG, you set the quality from 1 to 100. Higher values produce larger files with finer detail. Lower values shrink file size aggressively — useful for web thumbnails or email attachments where byte count matters. The same control applies when resaving JPEG files at reduced quality for delivery or compression purposes.

Convert both TO and FROM JPEG

Most converters handle one direction. Total Image Converter works both ways. Convert JPEG to PNG, TIFF, BMP, GIF, PDF, TGA, WebP, and more. Convert PNG, TIFF, BMP, RAW, PSD, WebP, and dozens of other formats to JPEG. Switch direction by selecting source files and clicking the target format — the workflow is identical either way.

Resize, crop, and watermark in the same pass

The conversion dialog includes tabs for resize (by pixels or percentage), crop (by pixel coordinates), color adjustments (brightness, contrast, saturation), rotation, and watermark. Apply any combination of these in the same operation as the format conversion. No need to run a separate image editor before or after.

Works offline, no file size limits

Every file is processed locally on your Windows PC. Nothing is uploaded to a cloud server. There are no per-file size limits and no account required. A 50 MB RAW file converts to JPEG the same way a 50 KB thumbnail does. You can process as many files as fit on your drive.

Personal license from $49.90

One-time payment. Free updates and technical support included. Works on Windows 7, 8, 10, and 11. A 30-day fully functional trial is available — no email or credit card required to download.

Total Image Converter Customer Reviews 2026

"I deliver edited shoots as TIFF, but clients always need JPEG for web and print submissions. Total Image Converter batch-converts 300+ TIFF files to JPEG in a couple of minutes. I set quality to 88 once and saved that as a preset. Every delivery is consistent now without touching an image editor."

Elena Vasquez Freelance Photographer

"Our CMS requires JPEG for all uploaded product photos, but the design team works in PNG. I set up a .bat file that calls TotalImageConverter on the PNG export folder every morning and drops JPEG files ready for upload. The quality control option is exactly what I needed — consistent output across hundreds of files, no surprises."

James Pritchard Web Developer

"We run campaigns across multiple channels and each requires different image formats and sizes. Total Image Converter handles the JPEG conversions for our print supplier and social media exports in one pass. The resize-and-convert feature saves a separate step in the workflow. Would like a folder watch mode for fully automated processing."

Natalia Brandt Marketing Manager

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