LensmapRead the PDF. Go deeper without leaving it.
Lensmap is not a full-document AI autopilot. Start from the passage you are actually reading, expand only the context you need, and keep what you learn as Maps that lead back to the source.
Keep using Chrome’s built-in PDF Viewer.
PMBOK 7 · The tailoring process
Projects in one organization usually have a lot in common.
First, a high-level partial tailoring for all projects. Then, a final tailoring for each project.
The shared structure reduces duplicated effort while leaving room for each project.
What does this two-stage tailoring look like as a practical flow?
All examples come from the same public PMBOK PDF. The Map changes shape—definition, table, comparison, flow, and more—based on the question.
See the PMBOK case studies →Focus → Expand → Map
You choose what deserves attention. Start from a passage or visual region instead of asking AI to read the whole document for you.
When the selection is not enough, Lensmap can read nearby blocks, the same section, or related passages—and records what it added.
What you learn is retained automatically as a Map: diagrams, tables, comparisons, concise explanations, and references in the form that fits the idea.
Chat is the scratchpad. The Map is the outcome.
The point is not to make chat logs look prettier. A Map keeps how reading became understanding. You can expand only the context needed from one passage or synthesize a whole book into a multi-block understanding Map. The examples below use a real public CC BY project-management PDF.
PMBOK ANALYZED WITH LENSMAP
Start from the PMBOK passage that recommends high-level tailoring across the organization followed by final tailoring for each project. Ask for a practical sequence, and the related context becomes a five-step flow.
SAME PMBOK, DIFFERENT QUESTION
Selecting four passages on P3.express, PRINCE2, Scrum, and PM² and asking how the book positions them produced a four-column Comparison Map. Lensmap does not force every insight into one diagram type.
Example source: Nader K. Rad, PMBOK® Guide 7, Underneath the Surface — CC BY. The Map is a Lensmap-generated summary and structure. The book reflects the author’s personal views, not PMI’s. PMBOK® is a registered mark of Project Management Institute, Inc.
Lensmap distinguishes what you selected from context added by AI. Citations lead back to the original PDF, so the explanation never becomes detached from its source.
PDFs, indexes, Explore threads, and Maps stay on your Mac. Lensmap has no Lensmap-owned cloud or relay server; only the references needed for an answer are sent to AI.
Local-first · ChatGPT subscription
Lensmap has no Lensmap-owned external server. PDFs, indexes, and Maps stay on your Mac, while the local Lensmap Server connects to Codex App Server. Only the references needed for AI processing are sent to OpenAI through Codex. No separate API key is required, and usage stays within the Codex allowance included in your ChatGPT plan.
Open source · Apache-2.0
Development setup lives in the README. This page keeps the installation section to a single entry point instead of repeating the steps.
FAQ
Chrome’s built-in PDF Viewer. You keep the PDF in Chrome and use Lensmap in the Side Panel beside it.
No. PDFs and indexes stay on your Mac. Codex receives the references needed for the current question plus constrained additional context only when necessary.
Lensmap has no Lensmap-owned external server or cloud. References needed for AI processing go from the local Lensmap Server through Codex App Server to OpenAI.
Lensmap uses Codex authenticated through ChatGPT. No separate API key is required; usage is within the Codex allowance included in your ChatGPT plan.
Yes. Enable “Allow access to file URLs” in the Lensmap extension details in Chrome.
The current packaged target is macOS Apple Silicon with Google Chrome 141 or later.