Merge PDF Files Online
Combine multiple PDF files into one document directly in your browser. Files remain on your device and are not uploaded to LocallyPDF servers.
How to use this tool
- Select multiple PDF files from your device, or drag and drop them into the upload area.
- Arrange file order so pages appear in the final sequence you want.
- Click Merge PDFs to generate one combined document in your browser.
- Download the merged file and review it before sharing.
Usage guide
When merging document sets from different teams, standardize file naming before upload so downstream recipients can quickly trace source sections after the final merge. This helps avoid rework when one part needs revision later.
If you are merging scans and digital exports together, review page orientation after download. Mixed sources can include rotated scans, and correcting orientation before distribution improves readability for stakeholders.
For legal and compliance packets, keep a copy of original files in addition to the merged output. A merged document is excellent for sharing, but source files are often needed for audit trails or correction workflows.
Use merge as the final stage after splitting and cleanup. Teams often split large PDFs first, remove irrelevant pages, and then merge only approved sections into one delivery-ready file with cleaner structure.
In client delivery workflows, merged PDFs reduce attachment sprawl. Instead of sending many separate files, you can provide one organized file that is easier to archive, search, and route through approval tools.
If a recipient has strict upload limits, run Compress PDF after merge. This sequence usually works better than compressing each source individually because final output size can be optimized as one document.
For application materials, merge in narrative order: cover page, forms, supporting evidence, then appendices. Logical ordering reduces reviewer friction and helps ensure critical pages are not overlooked.
On mobile devices, very large merges can take longer. For reliability, close extra browser tabs and process in smaller batches, then merge those intermediate outputs into your final deliverable.
If you collaborate across departments, share a short merge checklist with naming standards, section order, and quality checks. Consistent preparation reduces turnaround time and improves document quality across repeated workflows.
Frequently asked questions
Are my files uploaded when I merge PDFs?
The merge workflow runs in your browser. File content is processed locally on the device running the tool.
Does LocallyPDF add a watermark?
No watermark is added during merge operations.
Can I merge scanned and digital PDFs together?
Yes, as long as files can be opened in the browser and are not encrypted.