In this guide
How it works
Open the base PDF and add other PDF files if you need their pages.
Choose a position before an existing page or at the end; without another file, choose the number of blank pages.
Create the revised PDF and check both sides of the inserted section.
Input, result and limits
| Property | Details |
|---|---|
| Input | |
| Output | |
| Important limitation | Up to 80 PDF pages; inputs up to 25 MB combined. |
The workflow in six views
1Input
Open the base PDF and add other PDF files if you need their pages.

2Settings
Choose a position before an existing page or at the end; without another file, choose the number of blank pages.
3Apply
PDF → PDF
4Before and after
Complete page set → Selected pages or order
5Review
Check page count and order Change only the intended pages or areas Check spacing, overlaps and line breaks
6Save
Create the revised PDF and check both sides of the inserted section.
Example
Before
Complete page set
After
Selected pages or order
Check these details in the result
- Check page count and order
- Change only the intended pages or areas
- Check spacing, overlaps and line breaks
Understand the insertion position
Position 3 places new pages before the current third page. In a ten-page document, position 11 means the end. To add an appendix immediately after the cover, choose position 2. The remaining pages keep their relative order. Use the page-reordering tool if you subsequently need to move individual pages elsewhere.
Prepare either an appendix or a placeholder
When you add more PDFs, their pages become the inserted content. With only the base file selected, you can insert 1 to 20 blank pages instead. Check mixed paper sizes and orientations before printing. Existing page numbers printed inside the document do not automatically change their meaning after insertion; revise numbering separately where necessary.
Frequently asked questions
Which file stays the main document?
The first selected PDF is the base. Other selected files supply the inserted content.
Can I insert just one page from an appendix?
Extract that page into a separate PDF first, then insert the extracted file at the required position.