PDF Toolbox - Quick local merging & extraction

How to Use
① Use with URL (Easy)
Simply open this URL in your browser.

② Download and Use (Offline)
Download the ZIP file and extract it
Double-click the PDFToolbox.html file inside
This will open it in your browser.
You can use it with peace of mind even in situations where you don't want to use internet connection, such as at work or while traveling.

③ Operating the Contents
◆◆Combine PDFs◆◆
Select PDFs with "+ File" (you can also drag and drop into the frame)
Rearrange the order with "▲Up" and "▼Down"
Press "Combine and Save"
The PDFs will be saved as one combined file. Each original filename becomes a "bookmark," so you can jump to your desired page instantly.

◆◆Extract Pages◆◆
Select one file with "Choose PDF"
Enter the pages you want to extract
Examples: 5-12 (pages 5 through 12) / 3 (page 3 only) / 1-2,5,9-11 (non-consecutive pages OK)
Full-width numbers are also acceptable
Press "Extract and Save"
A PDF containing only the selected pages will be saved.