How to Convert PNG to JPEG: Complete Guide

5 proven methods to convert PNG files to JPEG format with optimal quality and file size

Method 1: Online Conversion Tools

Best Free Online Converters

1. Our PNG to JPEG Converter - Fast, secure, no watermarks
2. CloudConvert - Supports batch conversion
3. Convertio - Good for multiple formats
4. Online-Convert - Advanced quality settings

Step-by-Step Online Conversion

1. Visit a trusted PNG to JPEG converter
2. Upload your PNG file (drag & drop or click to browse)
3. Adjust quality settings (recommended: 80-90% for web use)
4. Click "Convert" and wait for processing
5. Download your optimized JPEG file

Method 2: Using Photoshop

Professional Quality Control

1. Open your PNG file in Adobe Photoshop
2. Go to File → Export → Export As
3. Select "JPEG" from the format dropdown
4. Adjust quality slider (80-90% recommended)
5. Preview the result and file size
6. Click "Export" and choose save location

Method 3: GIMP (Free Alternative)

Free Professional Tool

1. Download and install GIMP (free)
2. Open your PNG file in GIMP
3. Go to File → Export As
4. Change file extension to .jpg or .jpeg
5. Click "Export" and adjust quality in dialog box
6. Set quality to 80-90% for best results
7. Click "Export" to save

Method 4: Built-in OS Tools

Windows (Paint/Photos App)

1. Right-click PNG file → "Open with" → Paint
2. Go to File → Save As
3. Choose "JPEG picture" from dropdown
4. Name your file and click "Save"

Mac (Preview)

1. Open PNG file in Preview app
2. Go to File → Export
3. Select "JPEG" from format dropdown
4. Adjust quality slider
5. Click "Save"

Method 5: Command Line (Advanced)

Using ImageMagick

# Convert single file
convert input.png -quality 85 output.jpg

# Batch convert all PNG files
for file in *.png; do convert "$file" -quality 85 "{$file%.png}.jpg"; done

# Convert with specific dimensions
convert input.png -quality 85 -resize 1200x800 output.jpg

Quality Settings Guide

When NOT to Convert PNG to JPEG

• Logos and graphics: JPEG compression creates artifacts around sharp edges
• Images with transparency: JPEG doesn't support transparent backgrounds
• Screenshots with text: PNG preserves text clarity better
• Simple graphics: PNG is often smaller for images with few colors
• Images requiring editing: PNG preserves quality through multiple edits

Batch Conversion Tips

Converting Multiple Files

• Online tools: Many support batch upload (up to 20-50 files)
• Desktop software: XnConvert, IrfanView for bulk conversion
• Scripts: Use ImageMagick or Python PIL for hundreds of files
• Photoshop: Actions and batch processing for consistent results