Drop one PDF onto another to merge, drag pages into any order, rotate or remove pages, then export a single combined PDF - all in the browser.
Client-side PDF combiner. Drop one or more PDFs to load every page as a reorderable thumbnail, drag pages into any order across all source files (drop one PDF onto another to merge it in), rotate, duplicate, or delete individual pages, then export a single merged PDF. js (thumbnails) and pdf-lib (page copy/merge); no file is uploaded.
Page-level assembly only, not a document editor: no content editing, text extraction, form/signature preservation guarantees, or OCR. Page-level encryption is bypassed with ignoreEncryption; password-protected documents may fail to load. Very large sets are limited by available browser memory.
Use to assemble drawing packages, combine reports, or reorder scanned pages before ingestion or issue. Verify the final page order and orientation in the exported file.
Other drawing / ingestion in the same workspace.
Upload drawings, review AI-suggested walls, openings, lintels, and project info with evidence, then generate a draft schematic.
Drawing / IngestionIngests PDF drawing sets and builds a structured sheet index with revision history and delta-sheet flags.
Every tool ships inside the CoLateral desktop workspace, so a result can stay attached to the project, the drawing, and the review trail it belongs to instead of ending up in a loose spreadsheet.
Outputs are design aids and stay in draft until a qualified engineer reviews and approves them.