# Custom Case study builder that keeps customer images/info private > Source: > Published: 2026-11-11 20:58:46+00:00 A free skill for Claude. Paste your notes, get a finished case study PDF in your own brand. Your client screenshots never leave your computer. Two files. Free, MIT licensed. [See a sample PDF →](https://www.sansrealm.com/downloads/case-study-builder/sample-case-study-final.pdf) [The skill](https://www.sansrealm.com/downloads/case-study-builder/case-study-builder.skill), and [the image placer](https://www.sansrealm.com/downloads/case-study-builder/Image-Placer). Keep the placer somewhere you will find it again; you reuse the same file for every case study. In Claude, open Settings, then Capabilities, and turn on "Code execution and file creation". Skills work on Free, Pro, Max, Team and Enterprise plans. On Team and Enterprise, an owner may need to allow skills first. In Claude, open Settings, then Skills. Press "Add", choose to upload a skill, and pick the file you downloaded. Upload it exactly as it is. Tell Claude about the project in your own words. Mark where pictures go with a line like `[image: dashboard]`, or `[images side by side: first, second]` for two in a row. Claude writes the story, builds the PDF and lists any line it inferred so you can check it. Image positions show as dashed boxes. The first time, Claude asks for your company name, website and an accent colour. With your first PDF it gives you one line to add to a Claude Project's instructions. Every case study you make inside that Project carries that brand, and you are not asked again. One Project per brand, as many brands as you need. Open the draft in the image placer from your computer, drop your screenshots in, and save. The placer works offline and is locked so it cannot connect to the internet. The saved file is your finished PDF. We write case studies for prospects, and the screenshots in them belong to our clients. We wanted a fast way to produce a consistent, well-set document *without uploading client screens to anyone's servers*. So the writing happens in Claude, and the images are added locally. We use our own branded version of this for every Sansrealm case study. Sansrealm designs products and design systems, and can set up your brand so tools like Claude apply it correctly across the documents your team produces. Released under the MIT License. Made by Sansrealm. Works with Claude; not affiliated with or endorsed by Anthropic.