I frequently export SVG's from Illustrator using `save as` and SVG.
Sometimes, this results in a clean SVG and sometimes it results in a giant `<metadata><c2pa:manifest xmlns:c2pa="http://c2pa.org/manifest">` block that's easily ten times as big as the actual SVG data.
Does anyone know why this is sometimes included?
I have created two test Illustrator files that are essentially identical. When I save one, it creates the giant manifest block and when I save the other, it's what I expect — a very simple SVG.
You can download the test files at https://files.svija.love/manifest/SVG-manifest.zip
I am saving from Illustrator 28.5 on macOS.
This is a duplicate of https://community.adobe.com/t5/illustrator-discussions/why-is-illustrator-adding-lt-c2pa-manifest-gt...
But since I have provided simple test files and have a much simpler workflow, I wanted to draw attention to the problem with a new post.
This is what the interior of the file looks like:
These are the `Save As` settings:
The test files are very simple — a single layer and a single placed image.
I have the same issue with Illustrator 27.9.
I have Exiftool installed, and if I look at the "no manifest" version of the SVG, it shows:
File Name : without manifest.svg
Directory : /Users/Main/Documents/Adobe Bug Report/AI 28.5
File Size : 318 bytes
File Modification Date/Time : 2024:06:19 17:11:10+02:00
File Access Date/Time : 2024:06:19 17:11:10+02:00
File Inode Change Date/Time : 2024:06:19 17:39:57+02:00
File Permissions : -rw-r--r--
File Type : SVG
File Type Extension : svg
MIME Type : image/svg+xml
ID : Layer_1
Data-name : Layer 1
Xmlns : http://www.w3.org/2000/svg
SVG Version : 1.1
View Box : 0 0 1920 1332
If I look at the file WITH the manifest, it shows:
ExifTool Version Number : 12.84
File Name : with manifest.svg
Directory : /Users/Main/Documents/Adobe Bug Report/AI 28.5
File Size : 18 kB
File Modification Date/Time : 2024:06:19 17:34:16+02:00
File Access Date/Time : 2024:06:19 17:34:17+02:00
File Inode Change Date/Time : 2024:06:19 17:39:42+02:00
File Permissions : -rw-------
File Type : SVG
File Type Extension : svg
MIME Type : image/svg+xml
ID : introBoutique
Xmlns : http://www.w3.org/2000/svg
SVG Version : 1.1
View Box : 0 0 1920 1332
JUMBF : (Binary data 13380 bytes, use -b option to extract)
JUMD Type : (c2pa)-0011-0010-800000aa00389b71
JUMD Label : c2pa
Actions Action : c2pa.edited
Actions Software Agent : Adobe Firefly
Actions Digital Source Type : http://cv.iptc.org/newscodes/digitalsourcetype/compositeWithTrainedAlgorithmicMedia
Exclusions Start : 242
Exclusions Length : 17840
Name : jumbf manifest
Alg : sha256
Hash : (Binary data 32 bytes, use -b option to extract)
Pad : (Binary data 9 bytes, use -b option to extract)
Title : Generated Image
Format : image/svg+xml
Instance ID : xmp:iid:0ee660f6-ebf0-478e-9970-3aa07ea95c89
Claim generator : Adobe_Illustrator/28.5 adobe_c2pa/0.7.6 c2pa-rs/0.25.2
Claim Generator Info Name : Adobe Illustrator
Claim Generator Info Version : 28.5
Signature : self#jumbf=c2pa.signature
Assertions Url : self#jumbf=c2pa.assertions/c2pa.actions, self#jumbf=c2pa.assertions/c2pa.hash.data
Assertions Hash : (Binary data 32 bytes, use -b option to extract), (Binary data 32 bytes, use -b option to extract)
Item 0 : (Binary data 3266 bytes, use -b option to extract)
Item 1 Sig Tst Tst Tokens Val : (Binary data 3638 bytes, use -b option to extract)
Item 1R Vals Ocsp Vals : (Binary data 2264 bytes, use -b option to extract)
Item 1 Pad : (Binary data 2760 bytes, use -b option to extract)
Item 2 : null
Item 3 : (Binary data 256 bytes, use -b option to extract)
The example file came from one of my clients, so it looks as though it was watermarked by Adobe for having Firefly generative content at one time (though the content was since deleted).
I'll ask my client about it.
UPDATE: my client did say that he regularly uses AI for his illustrations, so mystery solved.
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