Editing Convert many images to one PDF on Mac (section)

=== 步驟2: 多個PDF -> 合併成一個 PDF 檔 ===
使用合併 PDF 檔案的軟體
* [[PDF split and merge tools]]

或用 Finder 輸出成 PDF
# Finder 切換到 PDF 資料夾，選擇多個 PDF 檔
# 按 {{kbd | key=⌘ command}} + {{kbd | key= ↓}} ，打開「預覽程式」
# 滾動捲軸，到最後一頁 PDF 縮圖
# 按 {{kbd | key=⌘ command}} + {{kbd | key= a}} 選擇所有縮圖
# 將選取的所有縮圖，拖曳到最後一頁縮圖內。將會堆疊全部 PDF 頁面。
# 選取最後一頁 PDF 縮圖。選單: 檔案 -> 輸出為 PDF。


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How to convert many images to one PDF with Preview on Mac

step1: multiple images -> PDF files
# Finder: Select multiple images
# Press {{kbd | key=⌘ command}} + {{kbd | key= ↓}} to open multiple images with Preview 
# Press {{kbd | key=⌘ command}} + {{kbd | key= a}} to select all thumbnail images.
# File menu and choose “Export Selected Images…”
# Format: Choose "PDF"
# Suggest to create a new folder for saving PDF files
# Press {{kbd | key=⌘ choose}}. It will generates multiple PDF files

step2: combine multiple PDF files to one PDF file
# Finder: Switch to the pdf folder and select multiple PDF files
# Press {{kbd | key=⌘ command}} + {{kbd | key= ↓}} to open multiple PDF files with Preview 
# Scroll down to the last PDF thumbnail
# Press {{kbd | key=⌘ command}} + {{kbd | key= a}} to select all PDF thumbnails.
# Drag the selected all PDF thumbnails INTO the last PDF thumbnail.
# Select the the last PDF thumbnail. File menu and choose “Export PDF”

other similar tools
* ''$'' [http://icecreamapps.com/PDF-Split-and-Merge/ PDF Split & Merge: split PDF or/and merge PDF files free on Windows and Mac - Icecream Apps]