Converting searchable PDF to a non-searchable PDF

Question

I have a PDF which is searchable and I need to convert it into a non-searchable one.

I tried using Ghostscript and change it to JPEG and then back to PDF which does

Answer 1

a possible way to produce non-searchable vector pdf from a searchable vector pdf is

1. burst pdf in its single pages

   pdftk file.pdf burst

2. convert any single page in svg with

   pdftocairo

   • http://poppler.freedesktop.org/

contained into poppler utils

for f in *.pdf; do pdftocairo -svg $f; done

3 . delete ALL pdf in folder

4 . then, with batikrasterizer

• http://xmlgraphics.apache.org/batik/tools/rasterizer.html

re-convert ALL svg to pdf (this time the resulting pdfs will be kept vectorial, but without to be searchable)

java -jar ./batik-rasterizer.jar -m application/pdf *.svg

final step: join all resulting single page pd in one multipage pdf file

pdftk *.pdf cat output out.pdf