note how to erase pdf metadata

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Malin Freeborn 2024-08-13 18:58:50 +02:00
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@ -22,6 +22,7 @@ And overwrite all metadata:
```bash
exiftool -all= -overwrite_original -ext jpg .
```
(NB: This does not work on pdf data. See [here](pdf_erasure.md) for erasing all pdf data)
Or just GPS data:
@ -36,3 +37,4 @@ identify -verbose
```

25
data/pdf_erasure.md Normal file
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@ -0,0 +1,25 @@
---
title: "PDF Metadata Erasure"
tags: [ "Documentation", "Metadata", "Ghost Script" ]
---
Make a text file called 'pdfmark.txt'.
```text
[ /Title ()
/Author ()
/Subject ()
/Creator ()
/ModDate ()
/Producer ()
/Keywords ()
/CreationDate ()
/DOCINFO pdfmark
```
Then run:
```bash
gs -o output.pdf -sDEVICE=pdfwrite "$FILE".pdf pdfmark.txt
```