ExifCleaner 4.5.0

What's new in 4.5.0

ExifCleaner 4.5.0
ExifCleaner 4.5.0 cleans PNG and JPEG files with the app's own built-in cleaner when Save as copy is on, fixes WebP resolution loss in that same mode, and removes JPEG content credentials to match what the bundled ExifTool already removed.
What's new
- PNG and JPEG copies are now cleaned by the app's own built-in cleaner. With Save as copy on, PNG and JPEG files are cleaned by a built-in cleaner instead of the bundled ExifTool, whenever it supports every preservation setting you have turned on. Files it declines to handle are cleaned by ExifTool exactly as before. Every cleaned copy is reopened and checked by ExifTool for leftover metadata before it is kept; if the check finds anything unexpected, the copy is discarded, your original file is left untouched, and the file is reported as failed. Cleaning many PNG or JPEG files as copies in one batch now costs a few extra milliseconds per file from that check measured at about +5.9 ms per JPEG and +6.6 ms per PNG on a development machine which was judged worth paying so a copy with leftover metadata is never silently kept.
- WebP now keeps its resolution with Save as copy on. With Preserve resolution on, WebP files are cleaned by ExifTool and keep their resolution. This removes the 4.4.0 known limitation that WebP resolution was never kept in that mode.
- JPEG content credentials (C2PA) are now removed. Content credential data carried in JPEG APP11 segments is now removed by the built-in cleaner, matching what ExifTool already removed.
Other changes
- A failing PNG or JPEG copy now reports a generic "Generated output write failed" message instead of ExifTool's own more specific error text, matching the message every other copy-mode format (RAW, TIFF, media and WebP) already shows on a failed write.
Known limitations in 4.5.0
No executable release-blocking known gaps are approved for this release; documented format constraints follow below.
Format constraints
- TIFF: only the first page of a multi-page TIFF is cleaned; later pages keep their own ImageDescription, Software, Artist and Copyright. HostComputer, DocumentName and CameraSerialNumber also remain on the first page.
- RAW: some Canon maker-note tags stay because ExifTool cannot delete them (for example the CR2 maker-note SerialNumber). The RAW fix was measured on CR2, CR3, DNG and RW2 samples; no claim is made for ARW, NEF, ORF, PEF or SRW. RAF cleaning is still refused and the source is left unchanged. …

Full release notes »