When you possess a massive array of independent, discrete image files (JPEGs, PNGs, TIFFs) on a macOS workstation and you must geometrically fuse them into a single, continuous, highly compressible digital document for transmission, relying on third-party conversion software is mathematically inefficient. To force the macOS neural engine to execute an algorithmic synthesis—stitching the raster images together into a unified vector container—you must deploy the Print-to-PDF vector within the native Preview application.
Initializing the Batch Synthesis
You must first load the entire geometric array into a single active memory state.
- Locate your target image files in Finder.
- Highlight all the target files simultaneously (click and drag, or hold Cmd and click each file).
- Double-click the highlighted array. By default, macOS will mathematically push all of them into a single Preview window.
- Look at the absolute top-left corner of the Preview window and click the View Menu icon. Select Thumbnails to expose the left-hand sidebar matrix.
- Click and drag the thumbnails in the sidebar to physically reorder the chronological sequence of the final document. The image at the top will be Page 1.
- Execute the absolute hotkey: Cmd + A. This mathematically selects every single thumbnail in the sidebar matrix.
Executing the PDF Compilation
You will not use the standard “Export” or “Save As” functions; you must hijack the Core Graphics print spooler.
- With all thumbnails highlighted, execute the absolute hotkey: Cmd + P (or select File > Print from the top menu bar).
- A geometric print dialogue modal will spawn. Ignore the physical printer settings.
- Look at the absolute bottom-middle (or bottom-left) of this modal window. You will see a small drop-down menu labeled PDF. Click it.
- Select Save as PDF from the drop-down matrix.
- A standard save dialogue will spawn. Inject your target filename (e.g.,
Compiled_Presentation.pdf) and designate the physical save directory. - Click Save.
The macOS kernel will violently intercept the batch. It mathematically strips the individual image headers, recalculates the geometry of each file as an independent page, and compiles the entire payload into a single, highly stable PDF architecture.