Quality loss after redacting

[Bert_AT]

Hello community,

I have a problem with quality loss when saving PDF's:

I have a scanned PDF (created with the Android app "Adobe Scan") in which I would like to redact certain passages. As you know, the PDF must be saved as a new file after blackening. Unfortunately, the file is automatically reduced in size when saved. As a result, my redacted documents are very often very blurred.

The original files from the app, on the other hand, are very sharp.

Is there a way to disable automatic file compression after redacting?

I know that normally the compression can be controlled with a tick in the "Save As" dialog. Unfortunately, this checkmark does not exist when saving after redacting...

Attached is a scanned, sharp original file, as well as the blackened but blurred processed version.

Thanks in advance,

best regards,

Robert

[Tom28009858d7ro]

What you describe sounds like it might be caused by sanitization.

Firstly run one of your affected files through this free check. It will highlight pages where sanitization has caused the sort of degradation that you describe. http://pdf-analyser.edpsciences.org/

Also read this. https://helpx.adobe.com/uk/acrobat/kb/prevent-file-size-increase-after-sanitizing-pdf.html

BTW - the it is not about redaction, Adobe got the page title wrong.

[S. S]

Hi @Tom28009858d7ro,

Hope you are doing well. Thanks for writing in!

Would you mind sharing more info about the page title and the changes you suggest? I can get it through with the concerned team for review and changed.

Please send me the necessary information over a private message. To do so, click on my profile name followed by the blue "Send Message" button on the next page.

-Souvik