How to Combine PDF Files on Mac Windows iPhone and Android

You have several PDFs and need one clean file instead of a messy pile of attachments. The fastest fix depends on your device: Mac has built-in tools, Windows needs a PDF app, and phones work best with a trusted mobile PDF editor. Start with the method that matches where your files are right now.

1. Merge PDFs on a Mac with Preview

Preview is the quickest Mac fix when you want to combine whole PDFs or pull selected pages from one file into another.

1. 1.Open one PDF in Preview.
2. 2.Choose View, then Thumbnails.
3. 3.Drag another PDF from Finder into the thumbnail sidebar.
4. 4.Drop it where it belongs in the page order.
5. 5.Choose File, then Save.

To protect the original first, choose File, then Duplicate. For selected pages, open both PDFs in Preview, turn on Thumbnails, then drag only the pages you want into the other PDF sidebar.

2. Create one PDF from Finder

1. 1.Open Finder.
2. 2.Select the files you want in the PDF.
3. 3.Control-click the selected files.
4. 4.Choose Quick Actions.
5. 5.Select Create PDF.

This is the cleaner Mac route when the files are already sitting in the same folder. Finder also gives you a preview-pane route: choose View, then Show Preview, select the files, and click Create PDF at the bottom of the Preview pane.

3. Combine PDFs in Adobe Acrobat

Use Acrobat when your plan includes the Combine files tool. Adobe documents this as an Acrobat desktop feature, not a local free Reader-only feature.

• On Windows: open Acrobat, choose Menu, then Combine files. Add files from your device or open files, arrange the order, delete anything that does not belong, and select Combine.
• On Mac: open Acrobat, choose File, then Combine files. Add your files, put them in order, and select Combine.

Adobe also documents a tools-hub route: from the Acrobat home view, select See all tools to open All Tools, choose Combine Files, select Add Files, reorder the files, and select Combine. With a document already open, reach the same tool from the All Tools panel.

4. Use an offline Windows PDF app

• PDFsam Basic: open PDFsam Basic, choose Merge PDF, drag in the PDFs, arrange them, choose the resulting PDF file name, and select Run.
• PDF24 Creator: open PDF24 Creator, drag files into the right half of the Creator window, click the Join icon for whole-file merging, and save the resulting PDF. For selected pages, create an empty file, drag pages into it, then save it as a PDF.
• Smallpdf Desktop App for Windows: open the app, use Merge or Organize PDFs, add your PDFs, combine them, and save the new file.

Windows 11, Microsoft Edge, File Explorer, and Microsoft Print to PDF do not have a verified native workflow for merging existing PDFs in the provided research. For Windows, use a desktop PDF app.

5. Merge PDF files online in a browser

Online PDF mergers work from Mac, Windows, Linux, Chromebook, iPhone, iPad, and Android browsers. They upload your files to the service, merge them, and return a download, so use an offline app for private paperwork, tax files, and medical records.

• Adobe Acrobat Online Merge PDF: choose Select files or drag files into the tool, arrange them, select Merge files, then download or share the combined PDF. Sign in when Adobe asks for it.
• Smallpdf Merge PDF: choose Choose Files or drop files into the tool, add PDFs, images, Word, Excel, or PowerPoint files, rearrange or rotate pages, select Finish, then download, save to Google Drive, or share.
• iLovePDF Merge PDF: choose Select PDF files or drop PDFs into the tool, import from Google Drive or Dropbox, drag files into order, select Merge PDF, then download or save to cloud storage.
• PDF24 Merge PDF: select or drop PDF files, arrange the order, click Merge, then download the merged file.
• Sejda Merge PDF: choose Upload PDF files or drag in PDFs, reorder files, merge them, and download the result.
• Xodo Merge PDF: upload PDFs, adjust the file order, select Merge, then download the merged PDF.
• WPS PDF Merge PDFs: choose Select PDF File or drop PDFs into the tool, reorder or select pages in the tool, then merge and download.

6. Combine PDFs on iPhone iPad and Android

• iPhone and iPad with PDF Expert: PDF Expert handles PDF merging from its file manager. Readdle documents merging as a feature of the subscription version, though anyone who bought PDF Expert 6 can still merge without a subscription. On iPad, tap Select, choose the files, tap Merge on the sidebar, adjust the file name or save location, then tap Merge and Save. On iPhone, tap Select, choose the files, tap More, then Merge, adjust the file name or save location, and tap Merge and Save.
• Android and iOS with Xodo: open Toolbox, tap Manage PDF, choose Merge Pages, select or upload PDF files, tap NEXT, reorder files by long-pressing and dragging the handles, then tap MERGE.
• New scans on Android with OneDrive: open Scan, choose Whiteboard, Document, Business Card, or Photo, tap the white scan button, then tap Add for each extra page. Multi-page scanning needs OneDrive for Android 6.5 or higher and tops out at 10 pages or images. Tap Done, name the file, and tap Save to store the scan as one PDF.

7. Add a browser extension for repeated merges

A browser extension saves clicks when you merge PDFs often from Chrome or Edge.

• Adobe Acrobat extension: install or enable the extension in Google Chrome or Microsoft Edge, open the PDF tools from the extension, choose the merge or combine PDF tool, add files, organize the order, and combine them.
• Smallpdf Chrome extension: open Chrome Web Store, search Smallpdf, choose Add to Chrome, select Add extension, pin or open the extension, then use Merge PDF.
• iLovePDF Chrome extension: install the extension, open it in Chrome, choose Merge PDF, upload PDFs, reorder them, merge, and download.

8. Avoid outdated PDF merge tricks

Skip Microsoft Lens for new combined scans. Microsoft says Lens retirement began on January 9, 2026, support ended after February 9, 2026, and new scans stopped after March 9, 2026.

Also skip advice that presents Google Drive, Windows 11, Microsoft Edge, File Explorer, or Microsoft Print to PDF as built-in merge tools for existing PDFs. The provided research did not verify a current native merge workflow for those surfaces. Use Preview, Finder, Acrobat, a browser merger, or an offline PDF app instead.

9. Check work or school restrictions

On a managed computer, a missing Combine button can be an admin policy. Adobe enterprise documentation says administrators can disable Document Cloud services, which removes Create PDF, Export PDF, Organize, and Combine in Acrobat Reader even when the user has a subscription. Use the PDF app approved by your organization.

Frequently Asked Questions

What is the fastest way to combine PDF files on a Mac?

Use Preview for existing PDFs. Open one PDF, choose View, then Thumbnails, drag the other PDF into the sidebar, place it in order, and save.

Can I combine PDF files without uploading them?

Yes. Use Preview or Finder on Mac, PDFsam Basic on Windows, macOS, or Linux, PDF24 Creator on Windows, Sejda Desktop, PDF Expert, or Acrobat desktop.

Can Google Drive merge PDF files by itself?

No verified native Google Drive merge-PDF feature is included in the provided research. Use a third-party web tool, a connected app, or download the files and merge them with another current method.

Which tools work on Linux?

PDFsam Basic and Sejda Desktop support Linux for offline merging. Browser tools such as Adobe Acrobat Online, Smallpdf, iLovePDF, PDF24, Sejda, Xodo, and WPS also work from a current Linux browser.