Does PDF Merger upload my files?
No. Merging runs locally in your browser with pdf-lib. Your PDFs stay on your device during the merge step.
Combine multiple PDF files into one document in your browser.
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The guide and instructions on this page are available while the tool loads.
PDF Merger combines multiple PDF files into a single document while preserving page layout and readability. It is useful for submissions, reports, scanned pages, invoices, and document bundling.
A strong merge workflow depends on predictable ordering and reliable output. Users should be able to combine related files into a clean final PDF without extra formatting work.
Processing is designed to stay simple and privacy-aware so users can merge files without relying on external document services.
Typical tasks this tool is built for.
PDFs are merged locally in your browser with pdf-lib. Files are not uploaded for this workflow.
Practical tips before you download or share the output.
Make sure the final page order is correct before exporting. Processing stays in your browser — no upload required.
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Common next steps after using this tool.
Compress scanned and image-heavy PDF files directly in your browser.
Add password protection to PDF files directly in your browser.
Convert text-based PDF files into editable Word documents directly in your browser.
Convert text-based PDF files into Excel spreadsheets directly in your browser.
Extract text from scanned PDF files directly in your browser.
Extract selected pages from a PDF directly in your browser.
Situations where this workflow saves time.
No. Merging runs locally in your browser with pdf-lib. Your PDFs stay on your device during the merge step.
Yes. Drag files in the list to reorder them before you click merge. The exported PDF follows that sequence.
Very large batches or extremely big files may hit browser memory limits. Merge in smaller groups if the tab becomes slow.
Basic merge keeps pages intact, but complex bookmarks, forms, or embedded attachments may not survive every merge. Review the output before sharing.
Browse related tools or open the full workspace.