LineLatch: Print Templates

Found a leatherwork pattern worth making again? Set its scale from a reference length you know, turn the image into a tiled PDF, and keep the project ready for the next piece. LineLatch keeps your imported image, reference points, and paper settings together. Return to the project, change the paper, and export again without setting up the reference from scratch. ONE KNOWN LENGTH Import your own JPG, PNG, or HEIC image. Mark the ends of a reference line, enter its real length in millimeters or inches, and refine each point with zoom, a loupe, and small adjustments. PAGES FOR YOUR WORKBENCH Fit the full image across A4 or US Letter pages. Choose portrait or landscape, margins, and overlap. Preview the layout, then export a PDF with page labels and assembly guides. READY FOR THE NEXT PIECE Save, duplicate, and rename local projects. Export an editable project backup and restore it as a new project. Your setup can come back with you; a PDF alone is not an editable backup. CHECK BEFORE YOU CUT Export the calibration sheet first. Print at 100% / Actual Size, disable Fit to Page, and measure the test ruler before using your material. LineLatch calculates PDF dimensions from your selected points. It does not correct camera perspective or control your printer. No account, ads, subscription, or developer cloud service. All features are included with the app download. Projects stay on your device unless you choose to export or share them. System Photos and Files providers follow their own settings. Use a flat, undistorted image and a reference length you trust. The full image, including white borders, is the output area. Source PDF/SVG import, image cropping, and perspective correction are outside this version. Use images you created or have permission to use.