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When I export from Indesign I would like to maintain a high quality (eg 300dpi resolution), but I do not want anyone can open with illustrator my pdf and can move objects like I was back in the indesign project.

There is a way to do this?

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As far as I'm aware, other than password protecting the PDF (which can easily be circumvented), only raster-based PDFs would prevent easy editing of otherwise easily edited content such as text or vector objects.

Of course, even raster-based PDFs can be opened in an image editor such as Photoshop and manipulated as images. But in general editing raster-based PDFs can be much more of a chore than editing customary raster+vector based PDFs which InDesign and Illustrator both generate.

Simply, save or export the pages as jpg or tiff, then build a PDF from those images.

You can drag a group of jpgs to Acrobat to generate a PDF. Or use File > Create > Combine Files into Single PDF... within Acrobat Pro to generate a PDF from multiple images/files.

There's no way, which I'm aware of, from within Illustrator or InDesign to generate a raster image only based PDF upon output. Unless, of course, your document is entirely raster based.

Within Illustrator, you could select all and choose Object > Rasterize then save as a PDF. (Then undo to reverse the rasterization.)

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You can easily restrict these things in the export dialogue under the Security Settings.

When saving as PDF, you can add password protection and security restrictions, limiting not only who can open the file, but also who can copy or extract contents, print the document, and more.

A PDF file can require passwords to open a document (document open password) and to change security settings (permissions password). If you set any security restrictions in your file, you should set both passwords; otherwise, anyone who opens the file could remove the restrictions. If a file is opened with a permissions password, the security restrictions are temporarily disabled.

The RC4 method of security from RSA Corporation is used to password-protect PDF files. Depending on the Compatibility setting (in the General category), the encryption level will be high or low.

and

Use A Password To Restrict Printing, Editing And Other Tasks Restricts access to the PDF file’s security settings. If the file is opened in Adobe Acrobat, the user can view the file but must enter the specified Permissions password in order to change the file’s Security and Permissions settings. If the file is opened in Illustrator, Adobe Photoshop, or Adobe InDesign, the user must enter the Permissions password, since it is not possible to open the file in a view-only mode.

Source: http://help.adobe.com/en_US/indesign/cs/using/WSa285fff53dea4f8617383751001ea8cb3f-70c0a.html#WS8715A1ED-8C33-4cff-9ADE-3CDB1C6C707Fa

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This way is with the password. But I want something like "flattened layers" like in Photoshop. Can you understand me? Not password... –  ginolin Jan 20 at 12:15
    
I want something like "rasterize pages before exporting pdf". –  ginolin Jan 20 at 13:53
    
The password will only show up for the editing option. The end result will be the same. The only other option you have is to open it in Photoshop and actually flatten it. –  KMSTR Jan 20 at 14:08
    
I bought a password recovery program (<$50) so I can manipulate the content from locked PDFs. –  Chris K Feb 1 at 0:06
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