Windows PC

Merge PDF files on Windows 10 or 11 (free, no upload)

Quick answer: Windows 10 and 11 can open PDFs in Edge but can't combine them. Open this page in Edge or Chrome, add your PDFs, drag them into order and click Merge, then download one combined PDF. Your browser does the work on your PC, so nothing is uploaded, and it is free for up to 10 files at a time.

Steps last checked 18 October 2026 by the PDFWhisk team

At a glance

Use this page to merge files quickly with a guided workflow.
Accepted input: .pdf.
Output: downloadable files generated in-browser for supported workflows.

Local processing No server file storage Mobile-friendly

Upload Choose your file
Process Runs locally
Download Save result

Drop your files here

or tap to browse · accepts .pdf

Runs in your browser. No file uploads for supported tools.

Best on desktop for 100MB+ files · mobile recommended under ~100MB.

Runs locally No file uploads No server storage

How local processing works

Your PDF is processed in your browser using local JavaScript libraries.
PDFWhisk does not upload your file to a processing server for supported tools.
Only normal page assets load from the site (HTML/CSS/JS), not your document contents.

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Support: contact form (reply in ~24h)

Security & privacy details

How this tool helps

Combine multiple PDF documents into a single file in seconds. Simply drag and drop your PDFs, arrange them in the order you want, and merge. Our tool preserves all formatting, bookmarks, and links from the original documents. Perfect for combining reports, contracts, invoices, or any documents that need to be in one file. Reorder pages by dragging them into position before merging. All processing happens in your browser - your sensitive documents never touch our servers. Merges up to 10 PDFs at a time on the free plan (more with Pro) and produces a clean, properly structured output document. Use it when you need to merge PDFs on iPhone, compress after merging, split a merged file later.

Best for

Application packs Scanned batches Case bundles Phone-based workflows

How it works

1

Open the page in Edge or Chrome

No software to install and no account.
2

Add the PDFs

Select several PDFs in File Explorer and drag them onto the upload box together, or click it and pick them (hold Ctrl to choose more than one).
3

Put them in order

Drag the rows into the order you want the documents to appear.
4

Merge and download

Click Merge, then download the combined PDF and open it to check the order.

More files today? Free covers 3 tasks a day and files up to 50MB. For unlimited tasks and bigger files, Pro passes start at £1 for 24 hours. One-off payment, no subscription, and your files still stay on your device.

Combining PDFs on a Windows PC

Typical jobs: a CV and cover letter for one upload box, bank statements for a mortgage broker, or a set of scans for a solicitor. These notes help the merged file go through first time.

Why doesn't Windows merge PDFs?

Windows treats PDFs as documents to view and print. Edge's PDF viewer lets you read, highlight, draw and fill in forms, but has no option to add another file. Microsoft Print to PDF only prints one document at a time, so it can't join two PDFs either.

How do I get the order right?

The merged PDF follows the order of the list when you click Merge, not the order you picked the files. Rename files with a number first (01 CV, 02 Cover letter) if you are combining many, so they arrive already sorted.

What if the merged file is too big to send?

Merging adds the file sizes together. If the result is over an upload or email limit, run it through Compress PDF with a target such as 5MB or 10MB. Compression turns pages into images, so do it last, after merging, and keep the uncompressed copy.

How many files can I merge free?

Up to 10 files per merge and 3 tasks a day, with files up to 50MB each. A one-off Pro pass removes those limits. Nothing is uploaded either way.

Before you upload/share

Open the PDF and check every page before you send or upload it.
Keep the original files until the recipient or portal has accepted the document.

Frequently asked questions

Does Windows 11 have a built-in way to merge PDFs?

No. Edge can open and print PDFs, but it can't combine several into one. You need a tool such as this one, which runs in the browser without installing anything.

Will the merged PDF keep selectable text and quality?

Yes. Pages are copied across as they are, not re-rendered, so text stays selectable and nothing is compressed. Bookmarks from the original files are not carried over.

Can I merge photos and PDFs together?

Turn the photos into a PDF first with JPG to PDF, then merge that PDF with the others here.

What if one of the PDFs is password-protected?

The tool will tell you. Unlock it first (you need the password), then merge.

Is my PDF uploaded?

No. The PDF is opened and processed by your browser on your own computer. No request sends the file to PDFWhisk, which you can check yourself in the browser's Network panel (F12 in Edge or Chrome) while the tool runs.

What to do next

Chain tools together for a complete workflow.

Compress PDF

Shrink a PDF to a target size, such as 2MB or 500KB

Split PDF

Extract pages or split a PDF into multiple files

JPG to PDF

Convert images to a PDF document