Need to combine bank statements, invoices, scanned contracts, or chapters of a report into a single PDF? This free PDF merger does it in seconds, right in your browser. No accounts, no uploads, no waiting in queue. Drag in your files, set the order, click Merge — done. Whether you're an accountant stitching together client documents, a student combining lecture notes, or a lawyer assembling a case bundle, you get a clean merged PDF with every original page preserved exactly.
A PDF merger combines two or more PDF files into a single document while preserving the original content of each file. Unlike server-based tools that upload your PDFs to remote machines, this tool uses pdf-lib running directly in your browser. The pages are copied byte-for-byte from each source PDF into a new output PDF — no re-rendering, no recompression, no quality loss. The result is a single file containing all the pages in the order you specified.
100% client-side processing — your PDFs never leave your browser. Unlimited file count and total size (subject only to device memory). Drag-and-drop reordering before merging. Preserves fonts, images, hyperlinks, bookmarks, and form fields. No watermarks, no ads, no sign-up. No file count limits or daily caps. Works offline once the page has loaded. Mobile-friendly touch interface.
When you drop PDFs into the tool, each file is read into memory as a byte array. The tool uses pdf-lib to parse the source PDFs and create a fresh output PDF. For each input file in the chosen order, it copies the page objects (along with their fonts, images, and resources) directly into the output. Once all files are processed, the output PDF is serialized and offered as a download via a temporary in-browser blob URL. Nothing is sent to a server at any point.
Bank statements & financial documents — merge twelve monthly statements into one annual file for tax filing. Scanned contracts — combine signed signature pages with the original contract body. Multi-page invoices — stitch together separate invoice PDFs to send a consolidated AR pack. Course material — combine lecture notes, slide decks, and reading lists into one revision PDF. Legal bundles — assemble case documents, exhibits, and correspondence into a single court-ready file. Reports & proposals — merge cover pages, executive summaries, and appendices that were authored separately.
Privacy first — most online PDF mergers upload your files to a server, process them, and then offer a download. We don't. Your files are processed entirely in your browser, which is essential for sensitive documents like bank statements, payslips, contracts, and medical records. Speed — no upload wait, no queue, no rate limit. Most merges complete in a couple of seconds. Lossless — we don't re-render or recompress anything. The merged PDF is byte-stable with the originals. Free forever — no premium tier, no email gate.
Accountants and CAs combining client statements during tax season. Lawyers assembling case bundles and exhibit packs. Students merging lecture notes, slides, and readings into single study PDFs. HR teams compiling employee onboarding packets. Finance teams consolidating monthly invoices into AR reports. Anyone who handles sensitive PDFs and values keeping their documents local to their device.
Drop your PDFs into the upload area or click to browse. Use the arrows to reorder the files into the sequence you want them to appear in the merged PDF. Click 'Merge PDFs' and wait — most merges finish in 1–3 seconds. Click the download button to save the merged file. That's it.
Name your source files clearly (e.g., '01-cover.pdf', '02-summary.pdf') so they sort intuitively in the upload list. Unlock any password-protected PDFs first using our PDF Password Remover. For large bundles, split the work into batches of 20–30 files on mobile to stay within memory limits. Verify the merged PDF opens correctly in your usual reader before deleting the originals.
Encrypted PDFs are skipped — unlock them first. Very large PDFs (several hundred MB combined) may fail on low-memory devices; use a desktop for big jobs. Form field names that collide across source PDFs may behave unexpectedly when both filled — usually only the last copy retains its state.
Yes. No sign-up, no watermark, no daily limit, no premium tier. Merge as many PDFs as you like, as often as you like.
No. The entire merge runs in your browser using JavaScript and WebAssembly. Your PDFs never touch our servers. You can verify this by opening DevTools → Network and watching: zero file uploads happen when you click Merge.
There's no hard cap — we've tested with 100+ files and a few hundred MB of total size on desktop. The practical limit is your device's available memory. On mobile, expect 20–30 average-size PDFs to merge comfortably.
No. We copy pages byte-for-byte from each source PDF into the merged document. Fonts, images, bookmarks, hyperlinks, and form fields are preserved exactly. There is no re-rendering and no recompression.
You can reorder the entire PDFs using the up/down arrows. To pick specific pages, use our Split PDF tool first to extract the pages you want, then merge the results.
Encrypted PDFs are skipped with an error message. Unlock them first using our PDF Password Remover, then come back to merge.
Yes. The tool runs in any modern mobile browser (iOS Safari, Chrome on Android). The drop zone accepts files from the file picker, your photo library, or cloud storage apps.
Each individual file can be up to 100MB. Total merged size depends on your device memory — desktops handle several hundred MB comfortably.