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Merge PDF Online

or drop files here

Combine several separate PDF files into one unified, multi-page document directly in your browser. Perfect for merging contracts with attachments, combining scanned receipt bundles, or assembling portfolio submissions.

Combine PDF documents seamlessly

Upload multiple PDF documents and the merger assembles pages from each file in the order you provide. Page dimensions, orientations, embedded fonts and image quality are preserved through high-fidelity canvas rendering.

Batch document assembly

Merge invoices from multiple vendors into a single filing package, combine scanned identification documents for applications, or assemble multi-chapter reports that arrived as separate exports.

Unlimited page count flexibility

Whether you need to combine two single-page receipts or merge ten multi-page reports, the tool handles variable document lengths and mixed page orientations across input files.

Complete client-side privacy

Financial statements, legal contracts and confidential proposals remain on your machine throughout the entire merge process. No bytes are transmitted to cloud endpoints.

Technical references: MDN Canvas API · MDN Blob API

Merge PDF Files FAQs

You can select up to 20 PDF files to merge into a single document. Each file can have multiple pages.
Pages are rendered at 2x resolution to preserve text sharpness, line art detail and photographic image quality throughout the merged output.
Yes. Pages are assembled in the exact sequence you select your files. Rearrange file order before merging to control page sequencing.
Yes. Scanned image-based PDFs are fully supported since the merger renders each page as a high-fidelity raster canvas.
Yes. Output is a standard PDF document compatible with Adobe Acrobat, Apple Preview, web browsers and mobile PDF viewers.
PDFs must be unlocked before merging. If a document requires a password, unlock it first using your PDF reader.
Individual files up to 50 MB can be processed. Total combined size depends on your device memory.
Yes. The tool works in modern mobile browsers including Safari on iOS and Chrome on Android.
No. The output is clean with zero watermarks, timestamps or third-party branding.
Yes, the merger handles documents with mixed page dimensions and orientations, preserving each page layout exactly as it appears in the source files.

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