Image knowledge base

Make better image decisions

Practical guidance for choosing formats, protecting quality, improving website delivery and sharing photos more privately.

Compression guide7 min read

How to Reduce Image File Size Without Losing Quality

Reduce image file size while protecting visible quality. Learn when to resize, compress or change format, with practical settings.

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Format comparison8 min read

Compare JPG, PNG and WebP for photos, transparency, screenshots, compatibility and website performance.

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HEIC compatibility6 min read

Convert iPhone HEIC photos to compatible JPG files while controlling quality, metadata and privacy in your browser.

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Web performance7 min read

Compare WebP and JPG for website speed, quality, compatibility, editing and publishing workflows.

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Website image sizing8 min read

Choose practical dimensions and file-size targets for hero images, article photos, thumbnails and product images.

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Resizing guide7 min read

Resize photos and graphics cleanly by preserving aspect ratio, avoiding enlargement and choosing suitable output settings.

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PNG conversion6 min read

Understand how PNG transparency, sharp edges and size change when converting to JPG, and choose the right background.

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Compression fundamentals8 min read

Learn how lossy and lossless compression differ and how to choose for photos, graphics, editing and the web.

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Image privacy7 min read

Learn what EXIF metadata can contain, when to remove it and how conversion, screenshots and exports affect privacy.

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Resolution guide7 min read

Understand pixels, DPI and PPI, why changing DPI may not change an image on screen, and how to calculate print size.

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