Hello,
When I export my layout in pdf and open it with my pdf software (adobe acrobat reader), I can see the photos in full even if they are hidden behind rectangles, and the same for the sketchup files.
Here are some illustrations of my words:
Sorry I expressed myself badly.
When I open the pdf reader (adobe acrobat reader), I see like you.
But I would like it to be impossible to select the image, to be impossible to copy or to see if a photo has been cropped
Translate with google translate
As @DaveR says, you can change the security settings in Acrobat Standard or Professional. There is a catch: some third-party PDF editors don’t honour them.
Another way would be to use a PDF printer instead of the PDF Export feature, and choose the “print as image” option when printing. This will flatten all the items on the page and combine them into a raster image.
Yet another trick: export image files instead of PDF, and combine them later to a PDF in a PDF editor like Acrobat or PDF Xchange Editor.
The ultimate way to protect your work is not to give it to anyone. For paid work there are established rules about the usage, without the need for crippling technical safeguards.
thanks for your answers, @DaveR I use layout to make building permits
I insert scans of old building permits and I scale them then I hide the excess.
It’s also to use only 1 software and for speed
Seems to me it would make things faster for you and you would get exactly what you need in your document if you’d first open the image in an image editor and crop it. That won’t add that much time to your process and you won’t need to worry about others getting a copy of the entire image but whatever you want. They’re your projects.
And note that users can easily remove the restrictions you place, with free online tools.
As an architect, I still don’t understand why you want to tease your clients with this. You have scanned old documents that probably already belong to your clients, or are in the public domain.