I am designing a logo for a client. I've given her a few ideas and she wants to take 3 of them and work on them herself with her sister. We have a contract and she'll pay me so that's not the issue. I don't want her compromising my design! How do I share my feelings without being condescending? Thanks.
While I think this is a duplicate in general, I'd like to add some info based on context of the question.
This is a logo. When I deliver final logo files, included are fully working vector files. There's no point in maintaing or restricting delivery of native files for logos. The client actually needs native files for their logo.
So, to this end, I'd probably provide some basic native files and let the client play with them. I'd strip out any custom patterns, brushes, etc. and simply provide basic flat files. I'd essentially "dumb down" the files to only the necessary elements and send those. Certainly no harm would come of this due to the nature of the project.
Now, if things start devolving into "I can't edit this, can you send it to me in Word?" Or some such nonsense, then you'll need to explain that you have specific tools you use and altering the working files to allow her to make adjustments was not what was agreed upon.
I state this because it is a logo project. My attitude towards providing native files is markedly different for non-logo projects.
I personally think you shouldn't give her the files, since that's why she hired you. I think it's kind of a slap on my face if it's done to me even though the client will pay me for it.
I think you should just tell her that as a designer, it is with regret that you have to keep the designs and she would just have to tell you what she wants within the contract rules.
If you want to appear technical, tell her that you can give her the files, but it will require selling her the copyrights, which in turn will require them to pay a huge amount for each design, but this will remove your rights over the designs. Tell her that because you will no longer be able to place these in your portfolio or reuse the elements in the design, you will have to charge her more for it, although I think this option seems rather intimidating and passive aggressive.
If she insists, then I suggest giving her the files in minimal detail (maybe in one entire layer or in five layers and then in low resolution, or with a watermark, or something. If she complains, give her the first reason I stated, or make something up :)
I hope she doesn't insist, and I hope she just lets you design them within the contract rules!
All my hopes.