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Merge PDF Files
Combine multiple PDF documents into a single file in seconds. Simply upload your PDFs, arrange them in the order you need, and download the merged result. Perfect for combining reports, contracts, and presentations.
Free Online PDF Editor
ModiPDF
Merge, split, compress, and edit PDF pages right in your browser. Fast, secure, and 100% free — no installation or account required.
🔒 No file upload⚡ Works instantly💳 No credit card🌐 Works in all browsers
Upload your PDF files
Drag & drop files here or click to browse
Supports PDF, JPG, PNG · All processing done locally in your browser
Everything You Need to Work with PDFs
ModiPDF provides all essential PDF tools in one place — completely free and running entirely in your browser with no data ever sent to a server.
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Split PDF Pages
Extract specific pages or split a large PDF into smaller files. Select the exact pages you need and create separate documents instantly — no software installation required.
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Compress PDF
Reduce PDF file size without sacrificing quality. Our compression tool optimizes images and removes unnecessary data to make your PDFs smaller for easy sharing via email or cloud storage.
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Convert Images to PDF
Turn JPG, PNG, and other image formats into PDF documents with a single click. Great for scanning documents, creating photo albums, or archiving images in a universally compatible format.
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100% Private & Secure
All PDF processing happens entirely in your browser using WebAssembly technology. Your files are never uploaded to any server — your documents stay private on your device at all times.
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Fast & Free
No registration, no subscription, and no hidden fees. ModiPDF is completely free to use. Processing happens locally in your browser, making it fast even for large documents.
How to Edit Your PDF in 3 Simple Steps
No sign-up, no waiting — just fast, browser-based PDF editing.
1
Upload Your PDF
Click the upload area or drag and drop your PDF files directly onto the page. You can upload multiple files at once.
2
Edit & Arrange
Use the intuitive editor to reorder pages, delete unwanted pages, merge files, or split documents. Everything is visual and drag-and-drop friendly.
3
Download Your Result
When you're satisfied with your edits, click Download to save the final PDF directly to your device. No account needed.
Who Uses ModiPDF?
From students to business professionals, ModiPDF helps thousands of people work with PDFs every day — completely free and private.
For Students & Academics
Combine lecture notes, research papers, and assignments into a single organized PDF. Split lengthy textbooks into chapter-level files for easier study sessions. Convert scanned handwritten notes into clean PDF documents.
Students, researchers, educatorsFor Business Professionals
Merge contracts, proposals, and invoices into consolidated files for clients. Split large reports into department-specific sections for targeted distribution. Compress presentations before emailing to keep file sizes manageable.
Managers, accountants, HR teamsFor Freelancers & Creatives
Combine portfolio pieces into a single PDF showcase. Rearrange pages to create the perfect project presentation order. Convert design mockups from images into professional PDF format for client review.
Designers, writers, consultantsFor Everyday Use
Merge scanned receipts and documents for tax filing. Split a multi-page form to fill out and return only the pages you need. Compress large photo albums converted to PDF for easy sharing with family and friends.
Anyone working with PDFsWhy Choose ModiPDF Over Other PDF Tools?
Unlike traditional PDF editors that require subscriptions and upload your files to the cloud, ModiPDF keeps your data private and costs nothing.
| Feature | ModiPDF | Other PDF Tools |
|---|---|---|
| Price | 100% Free | Subscription required ($12–20/mo) |
| File Privacy | Files stay on your device | Files uploaded to cloud servers |
| Account Required | No account needed | Registration required |
| Processing Speed | Instant (local processing) | Depends on upload/download speed |
| File Size Limit | Limited only by your device | Typically 25–100 MB per file |
| Internet Needed | Only to load the page | Required for all operations |
The Complete Guide to PDF Editing in Your Browser
Learn how to get the most out of ModiPDF with these detailed guides for common PDF tasks.
How to Merge Multiple PDF Files into One
Merging PDFs is one of the most common document tasks, whether you need to combine invoices for accounting, compile research papers for a literature review, or assemble a multi-section report for a client presentation.
With ModiPDF, merging is simple: upload all the PDF files you want to combine by dragging them into the upload area. The editor will display thumbnails of every page from each file. You can then drag and drop individual pages or entire documents to rearrange them in any order. Once satisfied, click Download to save the combined PDF.
Unlike cloud-based tools, ModiPDF performs the merge operation entirely in your browser. This means there are no file size limits imposed by a server, no waiting for uploads and downloads, and no risk of your confidential documents being stored on a third-party server.
How to Split a PDF into Separate Files
Sometimes you receive a large PDF that contains more information than you need. Perhaps it is a 50-page report but you only need pages 12 through 18, or a scanned document where only certain sections are relevant.
ModiPDF makes it easy to extract the exact pages you need. Upload your PDF, then select the specific pages in the navigation panel — you can click individual pages or shift-click to select a range. Delete the pages you do not need, and the remaining pages will form your new document. Download the result and you have a clean, trimmed PDF.
This approach is especially useful for legal documents, academic papers, and government forms where you often need to submit or share only specific sections rather than the entire file.
How to Convert Images to PDF
Need to convert photos of receipts, whiteboard notes, or design mockups into a PDF? ModiPDF supports JPG and PNG image formats. Simply drag your images into the upload area and they will be automatically converted into PDF pages.
You can combine images with existing PDF files, rearrange pages freely, and download a single unified document. This is perfect for creating portfolios, archiving scanned documents, or preparing image-based reports.
Because everything happens locally in your browser, even large batches of high-resolution images can be processed quickly without any upload wait times.
Frequently Asked Questions
Everything you need to know about ModiPDF.
Is ModiPDF really free?+
Yes, ModiPDF is completely free to use. There are no hidden costs, no subscription fees, and no limits on the number of files you can process.
Do my files get uploaded to a server?+
No. All PDF processing is done locally in your web browser using WebAssembly (PDF-lib). Your files never leave your device, so your documents remain completely private.
What file formats does ModiPDF support?+
ModiPDF supports PDF files as the primary format. You can also upload JPG and PNG images to convert them into PDF documents.
Is there a file size limit?+
Since processing happens in your browser, the practical limit depends on your device's memory. Most modern computers handle PDFs up to several hundred megabytes without any issues.
Do I need to create an account?+
No account or registration is required. Simply visit the site, upload your files, make your edits, and download the result.
Which browsers are supported?+
ModiPDF works on all modern browsers including Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari. We recommend using the latest version for the best experience.
Ready to Edit Your PDF?
Start editing for free right now — no account, no limits, no cost.