PixoateMerge PDF files into one — free
Combine multiple PDFs into a single document in the exact order you want — fast, private and right in your browser.
- Drag to reorder files before merging
- Keeps original quality and formatting
- Free · no signup · files deleted automatically
Combine any number of PDFs · Up to 50 MB each
Drop PDF files to merge
Drop two or more PDF files
Done with Merge PDF? Try these next
Hand-picked tools that pair well with Merge PDF. Keep going without losing your file.
Split PDF
Split a PDF by page ranges, every N pages, or one PDF per page — single file or a ZIP of parts. Free with no daily limit, no signup, no watermark, no upload.
Try it nowOrganize PDF
Drag PDF pages to reorder, and click to delete the ones you do not need — reorder, extract and remove in one place. Free, no signup, no watermark, no upload.
Try it nowCompress PDF
Shrink PDF file size for email and form uploads with quality presets. Free with no daily task limit, no signup and no watermark — runs entirely in your browser, no upload.
Try it nowWatermark PDF
Stamp CONFIDENTIAL, DRAFT or any text diagonally across every PDF page, with opacity, font, rotation and color controls. Free, no signup, no upload — runs in your browser.
Try it nowSign PDF
Add a hand-drawn, typed or uploaded signature to any PDF page, with multiple placements. Free e-sign with no account and no watermark — runs in your browser, no upload.
Try it nowPDF Password
Lock a PDF with an AES-128 password, or remove a password from a PDF you can already open. Free, no signup — your file never leaves your browser, no upload.
Try it nowFrequently Asked Questions
Drop two or more PDFs onto the tool, drag the rows to set the merge order, and click Merge & Download. Pages from each source PDF are copied into a single output document in your chosen order. No upload — the merge happens entirely in your browser with pdf-lib.
usageYou can reorder entire files (drag the row up or down), and you can remove a file from the merge with the trash icon. To reorder individual pages within a PDF, run it through our Organize PDF tool first, then merge.
featuresPage content (text, images, fonts, hyperlinks within a page) is preserved exactly because pdf-lib copies pages atomically rather than re-rendering them. Document-level bookmarks and the table-of-contents are reset since the new file is a fresh document — re-add bookmarks with a desktop PDF editor if needed.
technicalThere is no fixed cap — the limit is your browser's memory. In practice, merging a handful of large books (500+ pages each) or hundreds of small reports works without issue on a modern laptop. Phones handle smaller jobs comfortably.
technicalNo — pdf-lib runs entirely in your browser, so the merge happens locally. This is essential for confidential PDFs like contracts, NDAs, medical records, and financial statements where uploading to a third-party server is a compliance violation.
privacyIf you know the password, decrypt first with our PDF Password tool, then merge. The merge tool calls ignoreEncryption when possible, but PDFs with strict encryption (printing/copying disabled) need to be unlocked first.
featuresSlightly smaller because duplicate fonts and embedded resources are deduplicated during the merge. The difference is typically a few percent — significant only when you are merging many files that share the same font set (e.g. an entire branded report series).
qualityFree, unlimited use, no watermark on the output, no signup. The page count and file count are limited only by your browser.
pricingHow Merge PDF helps you get it done
Real problems it solves every day — for businesses, creators, and everyday tasks. Find the use case that fits you and start in seconds.
Combine Multiple Receipts for Expense Reports
After a business trip, your receipts are scattered across email attachments, scanner output and screenshots. Merge them into one PDF before submitting through Concur, Expensify, or your finance team's portal.
Assemble Multi-Chapter Reports
Each contributor delivers a chapter as a separate PDF. Merge them in the right order — table of contents, chapter 1, chapter 2, appendix — for final delivery to the client or stakeholder.
Compile Legal Discovery Packets
Combine signed contracts, supporting exhibits, correspondence and amendments into a single bundle for opposing counsel or the court. Drag rows to set the canonical order before merging.
Wedding & Event Vendor Portfolios
Photographers, caterers and venues often send separate PDFs for proposal, pricing and references. Merge into one decision-ready packet to compare vendors side-by-side.
Tax Return Compilation
Form 1040, W-2s, 1099s, supporting schedules, and itemised deduction proofs all live as separate PDFs. Merge into one yearly return file for your CPA or the IRS portal.
Application Portfolios
College, scholarship, grant and visa applications usually accept one PDF. Merge cover letter, resume, transcript, recommendations and writing samples into a single submission file.