Free Online PDF Tools
Our PDF toolkit lets you merge multiple PDF files into one document and add page numbers to any PDF — all directly in your browser. No software installation required, no file size limits, and your files are never uploaded to any server.
Whether you are combining reports, adding page numbers to a presentation, or assembling a multi-chapter document, these tools handle it securely and instantly.
Tool Features
📎 Merge PDFs
Combine two or more PDF files into a single document in seconds. Select your files, click Merge PDFs, and download the result. The original order of your files is preserved.
🔢 Add Page Numbers
Automatically add sequential page numbers to the bottom of every page in your PDF. Perfect for reports, theses, legal documents, and any multi-page PDF that needs numbering.
🔒 Privacy First
All PDF processing happens locally in your browser using JavaScript. Your PDF files are never uploaded to any server and are not accessible to anyone else.
💯 Completely Free
No subscriptions, no watermarks, no limits. Merge as many PDFs as you need and add page numbers to documents of any length.
How to Merge PDFs
- Select your PDF files — Click the upload area and choose two or more PDF files from your device.
- Review the file list — Your selected files are shown in order. The merged PDF will combine them in this order.
- Click "Merge PDFs" — Processing happens instantly in your browser.
- Download the result — Click the download button to save your merged PDF to your device.
How to Add Page Numbers
- Select a single PDF file — Click the upload area and choose the PDF you want to number.
- Click "Add Page Numbers" — Page numbers are added to the bottom center of each page.
- Download the result — Save the numbered PDF to your device.
Common Use Cases
📊 Combine Reports
Merge monthly or quarterly reports from multiple sources into a single consolidated PDF document.
📚 Academic Documents
Add page numbers to theses, research papers, and academic submissions that require sequential page numbering.
⚖️ Legal Documents
Combine contracts, exhibits, and attachments into a single PDF or add page numbers for court submissions.
📋 Presentations
Merge slides exported as PDF from different sources or add page numbers to make navigation easier.
Frequently Asked Questions
Are my PDF files uploaded to a server?
No. All processing happens entirely in your browser using JavaScript libraries. Your files never leave your device.
How many PDFs can I merge at once?
There is no hard limit — you can merge as many PDFs as your browser can handle. For very large files, processing may take a few seconds.
Will merging PDFs affect their quality?
No. The merge tool combines PDFs without re-encoding or compressing them, preserving the original quality of images, text, and layouts.
Can I reorder pages before merging?
Currently, pages are merged in the order you selected the files. To control the order, simply rename your files so they appear in the desired sequence before selecting them.