How many PDF files can I merge at once?

Free registered users can merge up to 50 files totalling 200 MB. Pro users can merge up to 200 files with a 1 GB total limit.

Can I reorder individual pages from different PDFs?

Yes. After uploading, every page from every PDF is shown as a draggable thumbnail. You can freely mix and reorder pages from different source documents — you are not limited to reordering whole files.

Does merging reduce the quality of my PDFs?

No. The merge operation preserves the original page content exactly — text, images, fonts, and vector graphics are not re-encoded or compressed in any way.

Are my files stored on your servers?

No. All processing happens locally in your browser using WebAssembly. Your files never leave your device and are never stored anywhere.

Can I merge password-protected PDFs?

Password-protected PDFs must have their password removed first. Use the Unlock PDF tool on this site to decrypt the file, then come back and merge the unlocked version.

What happens if I add files in the wrong order?

Just drag the thumbnails to rearrange them — you can reorder any page from any file at any time before clicking Merge. There is no need to re-upload.

Does the tool work on mobile devices?

Yes. The drag-and-drop grid supports touch events so you can reorder and merge PDFs on a phone or tablet in any modern mobile browser.

Can I remove pages from a PDF while merging?

Yes. Hover over any thumbnail and click the trash icon to exclude that page from the output. This lets you effectively delete pages from a PDF or cherry-pick specific pages before merging.

Is there a file size limit?

Free registered users are limited to 200 MB total across all files, and Pro users can work with up to 1 GB at once. Individual file limits also apply per plan.

What browsers are supported?

The tool works in all modern browsers including Chrome, Firefox, Safari, Edge, and Brave on Windows, macOS, Linux, iOS, and Android. Internet Explorer is not supported.

Merge PDF Online — Combine Multiple PDFs

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Up to 50 files · 80 MB per file · 200 MB total · for higher limits

Drag & drop PDF files here

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PDF only • Max 50 MB per file

⬆️Upload PDFs

↕️Arrange pages

⬇️Download result

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Your files never leave your device. All processing happens locally in your browser — nothing is uploaded to our servers.Files are never stored on our servers · No tracking of your file contentsPrivacy Policy

What is Merge PDF?

Merge PDF is a free online tool that lets you combine multiple PDF files into one perfectly ordered document — entirely in your browser, with no uploads and no server processing. Whether you are assembling a multi-chapter report, combining scanned invoices, merging presentation decks, or stitching contracts together before signing, this tool handles it all in seconds.

Once you drop your PDFs onto the page, every single page from every document is rendered as a visual thumbnail so you can see exactly what you are working with before producing the final file. You are not limited to reordering whole files — drag any individual thumbnail to a new position to interleave pages from different sources in any order. Click the trash icon on any thumbnail to exclude that page from the output without touching the originals.

The entire process runs client-side using WebAssembly and pdf-lib, so your documents never leave your computer. This makes it the right choice for confidential contracts, personal records, financial statements, tax documents, medical files, and any sensitive material where uploading to a third-party server is not an option. There is nothing to install, and the tool works on any modern browser — Chrome, Firefox, Safari, and Edge on both desktop and mobile.

Need to go further? After merging, you can compress the result to reduce file size, split it back into separate files, add page numbers, or convert it to Word format — all without leaving this site. iLoveDocsTools is a complete browser-based document toolkit used by students, professionals, legal teams, and small businesses worldwide to handle everyday PDF tasks privately and without cost.

How It Works

Upload one or more PDF files using the drag-and-drop zone or file picker — you can add files in multiple batches. The tool reads each file with pdf-lib and renders thumbnail previews for every page across all documents in a unified grid. Drag thumbnails to reorder pages in any sequence, mixing pages from different files freely. Click the trash icon to remove any page. When the arrangement looks right, click "Merge & Download". The tool assembles a new PDF with only the visible pages in the displayed order, then triggers a browser download. Source files are never modified.

How to Use

Upload your PDFs

Drag and drop one or more PDF files onto the upload area, or click "Choose Files" to open the file picker. You can add more files at any time before merging.

Preview every page

After uploading, every page from every document appears as a thumbnail. Scroll through to confirm you have the right files and pages loaded.

Drag to reorder

Click and drag any page thumbnail to move it to a new position. You can freely mix pages from different source PDFs into any order you like.

Remove unwanted pages

Hover over any thumbnail and click the trash icon to exclude that page from the merged output. The original files are never changed.

Merge and download

Click "Merge & Download" — your combined PDF is built instantly in the browser and saved to your device. No server, no waiting, no subscription required — sign up free for 80 MB, upgrade to Pro for 250 MB.

Who Uses This Tool

🎓

Students & Academics

Combine lecture notes, assignment sheets, research papers, and reference materials into one organised study document.

⚖️

Legal & Compliance

Consolidate contracts, exhibits, correspondence, and supporting documents into a single court-ready or client-ready PDF file.

💼

Business Professionals

Assemble monthly reports, combine invoices for accounting, merge proposal decks, or package onboarding materials.

🏠

Real Estate

Bundle property listings, inspection reports, mortgage documents, and disclosure forms into a single shareable package.

🏥

Healthcare & Administration

Merge patient forms, referral letters, lab results, and insurance records while keeping sensitive data off external servers.

🖨️

Scanned Documents

Combine multiple scanned pages — each saved as a separate PDF — into one complete, archive-ready document.

Why Choose This Tool

100% Private — No Uploads

Everything runs inside your browser using WebAssembly. Your files never touch our servers, making this safe for sensitive and confidential documents.

Page-Level Control

Unlike most merge tools that only combine whole files, you can reorder, remove, or rearrange individual pages from different documents before merging.

No Quality Loss

pdf-lib copies pages at the binary level — text, images, fonts, and vector graphics are preserved exactly as in the originals with no re-encoding.

No Install Required

Open the tool and start working immediately — no software to download. Use free for files up to 40 MB, sign up free to raise your limit to 80 MB, or upgrade to Pro for 250 MB per file.

Works Everywhere

Chrome, Firefox, Safari, and Edge on Windows, macOS, Linux, iOS, and Android — the tool runs identically across all modern browsers and devices.

Part of a Full Toolkit

After merging, instantly compress, split, rotate, watermark, or convert your PDF using the linked tools — all browser-based, all free.

Key Benefits

Combine any number of PDF files into one perfectly ordered document

Drag-and-drop page reordering — mix pages from different files freely

Remove individual pages before merging without touching source files

100% private — no file upload, no server processing, browser-based only

Preserves full original quality — text, images, fonts, and vectors unchanged

Works on any modern browser: Chrome, Firefox, Safari, Edge, mobile included

Free up to 40 MB — sign up free for 80 MB, upgrade to Pro for 250 MB

Instant download — no email, no waiting for a processing queue

Frequently Asked Questions

Free Online Document Tools for Everyone

iLoveDocsTools is used by students, professionals, and businesses across the United States, Canada, United Kingdom, Australia, India, and more than 100 other countries. All tools are browser-based and process files privately — your files never leave your device. Free to use, with Pro plans for unlimited access.

Merge PDF