macOS Preview can merge PDFs but the process is cumbersome and prone to errors with many files. Here is a faster, more reliable way — directly in Safari.
Preview on Mac can combine PDFs by dragging thumbnails, but it is slow for many files and easy to accidentally duplicate pages. It also lacks a visual grid for reordering.
Go to pdfeditor.onl/organize-pdf. Drag PDF files from Finder directly into the browser window — faster than the file picker.
Tip: On macOS, drag multiple selected files from Finder at once onto the browser upload area to upload all simultaneously.
All pages from all uploaded PDFs appear in a grid. Drag thumbnails to reorder. Delete unwanted pages. Click Merge & Download.
Yes. pdfeditor.onl works in Safari or Chrome with no installation.
Yes. Works natively in Safari and Chrome on all Apple Silicon Macs.