Combine multiple PDF documents into a single PDF file instantly. Reorder files dynamically before merging. 100% browser-based and secure.
Merge Queue (0 files)
Queue is empty. Select two or more PDF files from the left panel to combine.
About the Merge PDF Tool
DCPIXEL uses the client-side pdf-lib engine to concatenate PDF documents. Your files never leave your device, meaning absolute privacy and zero upload wait times even for large PDFs.
100% Private — Processed in Your Browser
Every file stays on your device. DCPIXEL processes images entirely using the browser's built-in Canvas API and WebAssembly — zero server uploads, zero data collection.
Free — No Account, No Limits
DCPIXEL is completely free with no daily limits, no watermarks, and no registration. We never process your files on our servers, so we can offer this permanently at no cost.
Frequently Asked Questions
Is Merge PDF free to use?+
Yes, completely free. No account, no subscription, no watermarks, no daily limits. DCPIXEL processes your files locally in the browser, which means we have no server costs for file processing.
Does Merge PDF upload my files to any server?+
Never. Every operation runs locally in your browser using the HTML5 Canvas API and WebAssembly. Your files never leave your device.
What image formats does Merge PDF support?+
Check the upload area for the full list of accepted formats. Most tools support JPG, PNG, and WebP at minimum.
How long does Merge PDF take to process an image?+
Typically under 5 seconds for most images. Since processing happens locally on your device, speed depends on your CPU — not server queue time.
User Reviews
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