March 22, 20263 min read

Compress Image — Reduce Image File Size Online Free

Compress JPG, PNG, WebP, and other images without visible quality loss. Reduce image file size for web, email, and storage.

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Shrink Images Without Losing Quality

Images too large for your website, email, or upload? MyPDF's Image Compressor reduces file sizes by up to 80% while maintaining visual quality that's indistinguishable from the original.

How to Compress Images

Step 1: Upload Your Images

Open the Compress Image tool and upload one or more images (JPG, PNG, WebP, BMP, TIFF).

Step 2: Set Compression Level

Choose a compression level:

Light — Minimal reduction, maximum quality

Medium — Balanced (recommended for most uses)

Strong — Maximum reduction, good quality

Step 3: Download

Download your compressed images. File size comparison is shown for each image.

Compression Results by Format

Format	Typical Reduction	Best For
JPG/JPEG	50-80%	Photos, real-world images
PNG	30-60%	Screenshots, graphics, text
WebP	40-70%	Web images (modern browsers)
BMP	90%+ (convert to JPG/PNG)	Legacy format optimization
TIFF	80%+ (convert to JPG/PNG)	Archival format optimization

Why Compress Images?

Faster website loading — Compressed images improve page speed and SEO ranking
Email attachments — Stay within email size limits
Social media — Faster uploads, meet platform size requirements
Storage savings — Free up disk space and cloud storage
Mobile optimization — Smaller images load faster on mobile connections

Tips for Best Compression

Use WebP for web — Convert to WebP for the smallest files with best quality. Use Convert Image to change formats
Resize before compressing — Don't compress a 4000px image for a 500px display. Resize first with Resize Image
Batch compress — Upload multiple images at once for faster processing
Keep originals — Always keep uncompressed originals as backups
Strip metadata — Use Strip Metadata to remove EXIF data for additional size savings

Frequently Asked Questions

Will compression make my images blurry?

At light and medium settings, the quality difference is imperceptible to the human eye. Strong compression may introduce slight artifacts in detailed areas.

Can I compress PNG images?

Yes. PNG compression reduces file size while maintaining lossless quality. For even smaller files, consider converting to WebP.

Is there a file size limit?

Each image can be up to 50MB. No limit on the number of images per batch.

Is it free?

Completely free — no sign-up, no watermarks, no limits.

Resize Image — Change image dimensions
Convert Image — Change image format (PNG to JPG, etc.)
Crop Image — Trim unwanted areas
JPG to PDF — Convert compressed images to PDF
Compress PDF — Reduce PDF file sizes