PDF Merge
Merge multiple PDF files in sequence, all processed locally in browser
FiletobyAdd顺序Merge, 您可以在列表中调整顺序.
About This Tool
All PDF tools run locally in your browser using pdf-lib and pdf.js — your files never leave your device. For files larger than 100 MB, a desktop browser is recommended for best performance.
Frequently Asked Questions
Are my files uploaded?
No. Merging runs entirely in your browser with pdf-lib; files never touch a server and it even works offline.
Can I change the merge order?
Yes. After adding files, reorder them in the list and click merge.
What file size is supported?
It depends on device memory. Tens of MB is usually fine; for very large files use a desktop browser or split them first.