Merge PDF Files
Yes. You can merge multiple PDF documents into a single cohesive document in your browser without uploading your files. Using client-side pdf-lib assembly, documents are combined locally in memory with easy drag-and-drop reordering.
Browse files or drag & drop
Files never leave your browser. Zero cloud uploads.
Supports PDF documents (up to 100 MB)Your files are processed in your browser and are not uploaded by our code. You can confirm this in your browser's Network tab. Third-party ad scripts load on the page, outside the tool area, and are not given your files.
How does it work locally?
Select PDF Documents
Choose two or more PDF files from your device. Documents are loaded into local browser memory.
Reorder Pages & Files
Use the move up and move down buttons to arrange your documents into your desired sequence.
Merge & Download
Save your combined PDF document instantly. All vector text, fonts, and layouts are preserved.
Tips for Best Results
- Use the order badges and move buttons to verify your document sequence before merging.
- Vector elements and embedded fonts are copied losslessly without rasterization.
- Verify zero file transmission by inspecting the Network tab in your browser Developer Tools.
Format Comparison
| Operation | Memory Handling | Vector Quality | Privacy Guarantee |
|---|---|---|---|
| Local Merge | 100% In-Browser RAM | Preserved Losslessly | Zero server uploads or tracking |
| Cloud Competitor | Remote Server Upload | Varies / Recompressed | Requires blind privacy trust |
Limits and Technical Specifications
- Maximum combined file size: 100 MB.
- Encrypted or password-protected PDFs are rejected (password cracking or bypass is not supported).
Frequently Asked Questions
How do I rearrange the order of my PDFs?
Use the up and down arrow buttons next to each document to set your preferred page order before merging.
Are password-protected PDFs supported?
Encrypted or password-protected PDFs are rejected. Password removal or circumvention is not supported.
Is there a limit on file size?
You can merge PDF files up to 100 MB in total size directly in browser memory.
Does merging compress or degrade text quality?
No. Vector text, embedded fonts, and vector elements are copied page by page without rasterization.
Do my sensitive documents get uploaded?
Never. Document bytes remain strictly in your browser memory and are revoked immediately upon download or clearing.
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