Merge PDF
Upload PDF Files
Select two or more PDF files. You can use the arrows to reorder them in the desired sequence.
Select or Drop multiple PDF files
Drag and drop your document here, or browse files from your computer
Merge Summary
Merge PDF Online — Combine Multiple PDF Files in Seconds
Combine the pages of two or more PDFs in the file order you choose.
For a job application, place your cover letter first, your CV second and supporting certificates last. The result should contain the sum of the pages in those source files.
Page copying does not guarantee preservation of document-level bookmarks, interactive forms or digital signatures. Use an unencrypted copy that you are authorised to modify.
How to Use Merge PDF in 3 Easy Steps
Prepare the input, process it, and verify the saved output.
Prepare your input
Select two or more PDFs and wait for the file list to appear.
Process the document
Use the reorder controls to set the file sequence, then merge the documents.
Check the saved result
Open the saved PDF and check the first page, file boundaries, total page count and any important links.
Why Use OneToolPDF for Merge PDF?
Engineered for productivity, privacy, and precision formatting.
Practical example
For a job application, place your cover letter first, your CV second and supporting certificates last. The result should contain the sum of the pages in those source files.
Limitations to know before processing
Page copying does not guarantee preservation of document-level bookmarks, interactive forms or digital signatures. Use an unencrypted copy that you are authorised to modify.
Browser processing and file handling
This available tool processes document content in your browser. Choosing a file does not send its contents to our conversion server.
Frequently Asked Questions
Common questions regarding Merge PDF.
Related PDF Tools
Combine workflows with other high-performance tools on OneToolPDF.
Split PDF
Extract a chosen page range or separate a PDF into individual pages.
Organize PDF
Reorder, rotate or remove pages from a PDF using the page preview controls.
Compress PDF
Attempt basic PDF object optimisation and compare the saved size with the original.
Page Numbers
Add a visible numbering label to each page using a selected position and starting number.