Five complete guides. Real concepts, concrete checks.
Learn how media is stored, where conversions fail and what to verify before sharing. Every handbook includes a decision framework, practical workflows, limitations and links to original specifications. These are educational resources, not claims that every conversion works in every browser.
Technical handbook · image-formats
Image formats & compression
How pixels, compression, alpha, ICC profiles and export choices fit together.
Read the handbook →Technical handbook · pdfThe complete PDF handbook
Understand OCR, page operations, signatures, redaction, accessibility and archival files.
Read the handbook →Technical handbook · privacyPhoto metadata & privacy
Explore EXIF, XMP, IPTC, GPS, visual clues and safer sharing workflows.
Read the handbook →Technical handbook · videoVideo codecs & containers
Learn MP4 vs MOV vs WebM, H.264, AV1, bitrate and playback debugging.
Read the handbook →Technical handbook · audioAudio quality & file formats
Understand PCM, FLAC, MP3, AAC, Opus, levels, sample rates and file sizes.
Read the handbook →Go hands-on: The interactive labs report actual results on your device. The learning center contains shorter guided workflows. You can also download original sample files to reproduce the lessons. We disclose estimated calculations and never present them as measured benchmarks.