Social Media Metadata Optimizer

• JPEG10 notesMetadata lives in APP segments before the compressed image data, so cleaning and editing rewrite only those segments.Read all 10
• PNG8 notesText chunks (tEXt/zTXt/iTXt), tIME and eXIf are dropped; IDAT pixel data is copied unchanged.Read all 8
• WebP7 notesEXIF, XMP and ICCP are separate RIFF chunks; removing them leaves the VP8/VP8L bitstream untouched.Read all 7
• HEIC/HEIF7 notesMetadata lives in the file item store: EXIF and XMP are items, and removing one means rebuilding the table of byte offsets that says where every item…Read all 7
• AVIF3 notesAVIF is the same container as HEIC with a different codec inside, and one implementation covers both — checked against files from more than one…Read all 3
• MP45 notesOnly the container is rewritten. The encoded video and audio are never re-encoded, so there is no quality loss and no long processing wait.Read all 5
• QuickTime MOV3 notesQuickTime files use the same box structure as MP4 and are handled identically.Read all 3
• WebM4 notesTags, Title, MuxingApp, WritingApp, DateUTC and SegmentUID are overwritten with EBML Void elements.Read all 4
• PDF10 notesThe document information dictionary (title, author, creator, producing software, dates) and the XMP packet are both read, and both are removed by a…Read all 10
• MP37 notesMetadata sits in a tag block before the audio and a pile of smaller ones after it — ID3v1, APEv2, Lyrics3, TAG+.Read all 7
• WAV7 notesA WAV is a RIFF file: the audio is one chunk and the metadata sits in others beside it, so cleaning copies the samples across untouched.Read all 7
• M4A5 notesAn M4A is an MP4 whose tracks are sound, so the container work is the same: the encoded audio is copied through untouched and only the metadata boxes…Read all 5

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