What Is PDF Merging?
PDF merging is the process of combining two or more PDF documents into a single file. Whether you need to assemble a report from separate chapters, combine scanned pages into one document, or consolidate invoices for filing, a PDF merger saves you time and keeps your documents organized.
Most online PDF merging tools require you to upload your files to a remote server. This means your confidential contracts, financial statements, or personal documents pass through someone else's infrastructure. PhantomEtch takes a fundamentally different approach: all merging happens locally in your browser using WebAssembly. Your files never leave your device.
The merged output preserves all original formatting, bookmarks, hyperlinks, and embedded fonts. There is no quality loss, no compression artifacts, and no watermarks added to the result.
How to Merge PDFs in 3 Steps
Open PhantomEtch and Add Files
Go to phantometch.nullagency.io and click "Merge" in the toolbar. Drag and drop your PDF files or use the file picker to select them. Add as many files as you need.
Arrange the Order
Drag files to rearrange them in the order you want them to appear in the final document. You can also remove individual files or add more at any time before merging.
Merge and Download
Click "Merge" to combine all files into a single PDF. The merged document downloads automatically. The entire process happens in your browser — nothing is uploaded to any server.
Why Use PhantomEtch to Merge PDFs?
- Zero uploads — Your documents stay on your device. Critical for NDAs, contracts, medical records, and tax returns.
- No account required — Start merging immediately. No email, no sign-up form, no free trial that expires.
- Full quality — Merging preserves all fonts, images, vector graphics, bookmarks, and hyperlinks at their original quality.
- Works offline — PhantomEtch is a PWA. Install it once and merge PDFs even without an internet connection.
- 20+ other tools — After merging, you can sign, compress, redact, OCR, rotate, watermark, and more — all in one app.
Common PDF Merge Use Cases
- Combining report sections — Assemble cover page, executive summary, and appendices into one file
- Consolidating invoices — Merge monthly invoices into a single document for accounting
- Building application packets — Combine resume, cover letter, and references for job applications
- Organizing scanned documents — Merge individually scanned pages into a single coherent PDF
- Creating portfolios — Combine design samples or project reports into one shareable file