Below we show how to combine an even pages file and an odd pages file into one PDF, achieving proper order.

上傳您的文件

文件通過加密連接安全上傳. 文件保持安全. 處理後，它們將被永久刪除.

不想上傳您的文件並離線處理它們？
Try Sejda Desktop. 與在線服務功能相同，且文件永遠不會離開您的計算機.

點擊“上傳”並從您的本地計算機選擇文件.

將文件拖放到頁面上也有效.

Dropbox 或 Google Drive 文件

您也可以從 Dropbox 或 Google Drive 中選取 PDF 文件.

展開“上傳”下拉菜單並選擇您的文件.

Step 2: Ordering pages

Most common scenario is having two sets of files, even pages PDF and odd pages PDF, from an auto feed scanner. To combine them, just click the Alternate & Mix button.

In case the files were not uploaded in the right order, drag and drop to switch them. The odd pages PDF file is should be on the left and even pages PDF file on the right.

Tip: Collate reversed even pages

If the even pages were scanned in reversed order (10, 8, 6, 4, 2, etc) you should select the "Pick pages in: Reverse Order" option. The result will have the pages in proper order: 1, 2, 3, 4, etc.

Tip: Alternating using different step

By default 1 page is picked from each document, when alternating. Need to alternate using a different step?

For example: pages from left.pdf should be inserted between every 3 pages from right.pdf. In this case, change the "Switch document after reading" value to 3 for the right file.