MetoolzyPDF Merge
Merge PDFs
Combine multiple PDF files into one.
Reorder
Drag to rearrange page order.
Download
Save merged PDF instantly.
Client-side
All processing in your browser. No data uploaded.
Giới thiệu về PDF Merge
PDF Merge lets you combine multiple PDF documents into a single, cohesive file entirely inside your browser — no server upload, no account required, and no file size limits imposed by a remote service. Whether you need to consolidate scanned contracts, stitch together report chapters, or bundle presentation slides into one shareable document, this tool handles it in seconds. Simply add the PDFs you want, reorder them by dragging the up and down arrows until the sequence is exactly right, then click Merge & Download. The resulting file preserves every page, annotation, and embedded font from the originals. Because everything runs locally via the pdf-lib library compiled to WebAssembly, your sensitive documents never leave your device, making it safe to use even for confidential legal or financial paperwork.
Làm sao để PDF Merge?
- Click the drop zone or drag your PDF files into it — you can add as many files as you need.
- Review the list of added PDFs. Each entry shows the filename and its page count.
- Use the up (▲) and down (▼) arrows to reorder the files into the desired sequence.
- Remove any unwanted file by clicking the red × button next to it.
- Once the order is correct, click "Merge & Download". The merged PDF will download automatically.
Câu hỏi thường gặp
Is there a limit on how many PDFs I can merge?
There is no hard limit. You can add as many PDF files as your browser can handle in memory. For very large batches, merging in groups of 10–20 is recommended.
Are my files uploaded to a server?
No. All merging is done locally in your browser using pdf-lib. Your files never leave your device.
Will encrypted or password-protected PDFs work?
The tool attempts to load encrypted PDFs with the ignoreEncryption flag. Most owner-locked PDFs will work, but user-password-protected files may fail to load.
Does merging preserve bookmarks and links?
Page content, fonts, and images are preserved. Complex interactive elements like JavaScript actions or cross-document bookmarks may not carry over.
What browsers are supported?
Any modern browser that supports WebAssembly — Chrome, Firefox, Edge, and Safari 15+ all work.
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