Below we show how to combine an even pages file and an odd pages file into one PDF, achieving proper order.
Step 1: Upload your files
Files are safely transfered over an encrypted connection. Files stay safe and private, deleted once combined.
Rather not upload your files and work with them on premise?
Use Sejda Desktop. Offers same features as the online service, and the files are processed locally.
Upload PDF files to select files from your local computer. Can also select the complete folder.
Dragging and dropping files to the page also works.
Tip: Dropbox or Google Drive files
Select PDF files directly from Dropbox or Google Drive too. No need to download locally first.
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.