Are my PDF documents uploaded to any server?

No. All PDF merging is executed locally within your web browser using pdf-lib.

Is there a limit on file size or page count?

There are no arbitrary server limits. Processing is bounded only by your device's available memory.

Yes, vector graphics, embedded fonts, and original imagery remain completely intact.

Combine multiple PDF documents into a single unified file locally and securely. Your files never leave your device.

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