Merge PDF files
Press and drag file cards to quickly adjust their order in the final document.
Local processing · No File Upload Required
Files are processed in this browser without automatic uploads. Loading processing components for the first time may require an internet connection.
Drag PDF files here, or click to select a file
Multiple files can be selected at once
PDF merging: page order and scope
Merge reports, attachments or chapters into one PDF, with control over file order and page selection within each file.
Please select at least two PDF files to merge.
Capabilities explained
File order determines the merged sequence
Reorder file cards by dragging or using the move-up and move-down buttons. Selected pages within each file keep their original order.
Merge only part of each PDF
Open each file’s page-selection panel and use previews or ranges to choose content. Check the total page count to confirm the required pages are included.
Practical examples
Merge chapters in file order
Input
A: 1,2,3 B: 1,2
Conversion Result
A1,A2,A3,B1,B2
This illustrates a three-page file A followed by a two-page file B, producing five merged pages.
Usage Steps
Upload Multiple PDFs
Drag and drop multiple PDF files onto the page, or click the upload button to select multiple files at once.
Adjust merge order
Press and drag file cards to quickly adjust their order in the final document.
Merge and Download with One Click
After confirming the total number of pages, click 'Merge PDF' to download the newly merged file.
Frequently Asked Questions
How do I merge only selected pages from each file?
Open the page-selection panel on each file card and confirm the chosen pages. Check file order and total pages, then merge.
How many files can I merge? Are there file size limitations?
Processing capacity depends on browser memory, device performance and file structure.
Why can a file fail to join the merged result?
A file may be damaged, require an opening password or be unreadable by the parser. Inspect it separately, unlock or repair it if needed, then add it again.