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PDF Merge
Drop several PDFs, drag to reorder, hit Merge — one file out, no upload.
What this tool does
Combines any number of PDF files into a single document, in the order you choose. It is the simplest way to stitch together signed contracts, scanned receipts, exported reports, expense bundles, mortgage paperwork, or chapters of a textbook into one tidy PDF your reader can scroll through end to end. The whole merge happens locally on your device — your files are never uploaded, never copied to a server, never indexed, never logged. That privacy guarantee matters because the merged file often contains exactly the kind of content you would not want on a third-party server: bank statements, tax returns, ID scans, NDAs, medical records, internal reports. Pages keep their original size, fonts, and embedded images, so there is no re-rendering, no quality loss, no watermark, and no signup. Drag the cards to reorder before merging, drop the ones you do not want, and download a single clean PDF in seconds. Works on Windows, macOS, Linux, iPhone and Android — anywhere you have a modern browser.
How to use it
- Drop your PDFs — Drag PDF files into the zone or click to pick. Each file becomes a card showing its page count.
- Reorder the queue — Drag cards left/right or up/down to set the order. Click the × to drop a file you don't want.
- Hit Merge — Press the merge button. Every page from every file is copied, in order, into one new PDF — no re-rendering, no quality loss.
- Download — When status reads Merged PDF ready, click Download to save the file.
Why merge PDFs in your browser
Most free online PDF mergers ask you to upload your documents, run them through a third-party server, store them for hours or days, and bury sketchy cookie banners between you and the download button. That is risky for any document with sensitive content — contracts, IDs, financial paperwork, medical records — and unnecessary for a job that modern browsers can handle on their own. This tool keeps everything on your device. Pages are copied straight from your source files into a new PDF without re-rendering, so the merged document keeps the exact text, fonts, and image quality of the originals. There is no compression pass, no stripping of bookmarks, no re-flowing of layouts, and definitely no watermark. Output size lands close to the sum of inputs, with only a small overhead from reorganising the document tree. The result is a clean, drag-friendly merged PDF that opens identically in Adobe Acrobat, Preview, Foxit, or any browser PDF viewer — ready to email, archive, or print.
Tips for big merges
Files are processed one at a time so the merger stays light on memory and works comfortably on phones. On a typical phone you can merge roughly 50-100 MB of total PDF input; on desktop, several hundred megabytes is fine. If a very large batch ever runs out of memory, split the job in two, merge each half, then merge the two partial outputs together. Most PDFs combine without any setup — only documents that are password-protected or signed against copying need to be unlocked first in your PDF reader before merging. Scanned PDFs, OCR-processed PDFs, form-fillable PDFs, and PDFs with bookmarks all merge cleanly and keep their internal structure.