Practical guides for image, PDF & video workflows.

Pixels, aspect ratios and clean exports without accidental stretching.

Choose between photo compatibility, transparency and web efficiency.

Meet file limits while keeping faces and fine print readable.

Understand scan images, vector pages and realistic size targets.

Convert for compatibility while protecting your original photos.

Understand local processing, metadata and remaining network requests.

Keep clean edges, real transparency and a reusable original.

Understand codec support, bitrate and safe video exports.

Meet realistic file-size goals while protecting readable content.

Learn to inspect, remove and verify GPS and EXIF metadata before sharing photos, while keeping the original file.

Understand and inspect hidden photo and PDF properties, including timestamps, author names, location and editing software.

Resize multiple images while preserving aspect ratios, choosing appropriate dimensions and checking results.

Reduce video size using resolution, bitrate and trimming while preserving enough quality for messages and email.

Compare lossy and lossless image compression, learn what each method preserves, and choose practical settings without confusing file size with image quality.

Learn why PNG transparency disappears in JPEG exports, how white or black backgrounds are chosen, and how to keep crisp edges when converting.

Calculate printable image sizes from pixels and PPI, with accurate 300-pixel-per-inch examples, A4 calculations and realistic printing advice.

Fix WebP upload compatibility problems by converting to JPEG or PNG, preserving transparency when needed, and verifying the actual exported file.

Understand the privacy risks of online ID and passport photo tools, how to inspect browser network activity safely, and when to avoid uploading sensitive documents.