Merging PDFs is one of the most common document tasks: you have a contract in one file, an ID scan in another and a payment receipt in a third, and the office, bank or university wants a single file. This guide shows how to combine PDF files for free, in your browser, without uploading anything.
Many online PDF sites upload your files to a server. EuroTools Hub works differently: the merging happens inside your browser, so your documents never leave your device. That matters for contracts, IDs, medical papers and anything else you would not want to send to a stranger.
Is there a limit on the number of files? There is no fixed limit. The practical limit is your device's memory, so very big batches may be slow on older phones.
Does merging reduce quality? No. Pages are copied into the new document as they are.
Do I need an account? No. There is no signup and no watermark.
Imagine you are applying for a job and the employer accepts only one file. You have a cover letter (cover.pdf), your CV (cv.pdf) and two certificates (cert1.pdf, cert2.pdf). Open the Merge PDF tool, select all four files, move the cover letter to the top, the CV second and the certificates last, then tap Merge PDFs. You download one file named merged.pdf and can rename it, for example Application_FirstName_LastName.pdf.
The tool works in the browser, so it works on any device. On an iPhone, tap the upload area and choose files from the Files app or from iCloud Drive. On Android, pick files from the Downloads folder or Google Drive. On a computer, you can select several files at once by holding Ctrl (Windows) or Cmd (Mac) while clicking. After merging, the download goes to your normal downloads folder.
You can also combine documents in a word processor by copying content from one file to another, but that can change fonts and layout. Merging PDFs keeps every page exactly as it is, including images, fonts and formatting. That is why merging is the better choice for signed contracts, official forms, scans and certificates.
Use short, clear file names without special characters. Include your name and the purpose of the document, such as Invoice_March_2026.pdf. Some online application portals reject very long names or names with accents and spaces. If a portal fails to accept your file, try renaming it.
There is no fixed limit in the tool. The real limit is your device's memory, so very large files or dozens of files may be slow on an older phone.
No. Pages are copied into the new file as they are, so text, images and fonts stay the same.
Yes. The tool runs in your browser on iPhone, Android, Windows and Mac, and it needs no installation.
No. Your originals stay untouched and the merged file is a new download.
First convert the picture into a PDF with JPG to PDF, then merge both PDFs.
Yes. It needs no signup, adds no watermark and processes your files only in your browser.