The basic method: most PDF readers let you add links in seconds

You can add a hyperlink to a PDF in most PDF readers by switching to edit mode, selecting the text or area where you want the link, and pasting or typing the web address. The exact steps depend on which tool you're using — Adobe Acrobat, Preview on Mac, or a free alternative — but the principle is the same across all of them.

The link you add stays in the PDF file itself. When someone opens that PDF later and clicks the link, their browser opens the web address. This works whether you're linking to a website, an email address, or another page within the same PDF.

If you're working with a PDF you created from scratch or one you have full editing rights to, adding links takes less than a minute per link. If you're working with a locked or read-only PDF, you'll need to unlock it first — or use a different tool that can edit locked files.

Key Takeaways

  • Most PDF readers have an edit or link tool that lets you select text and attach a web address to it in one step.
  • Adobe Acrobat's Link tool is the fastest method if you already have the software, but free tools like Preview (Mac) and PDFtk work just as well.
  • You can link to websites, email addresses, or other pages in the same PDF, and the link stays embedded in the file when you save.
  • If your PDF is locked or password-protected, you may need to unlock it first or use a tool that handles encrypted files.

Adding a link in Adobe Acrobat

Open your PDF in Adobe Acrobat (the full version, not the free Reader). Click the Tools menu at the top, then select Edit PDF. In the right panel, you'll see an Add Link button — click it.

Now click and drag to select the text or area where you want the link to appear. A dialog box will open asking for the web address. Type or paste the URL (for example, https://www.example.com), then click OK. The text will now be underlined and colored to show it's a link. Save the file when you're done.

If you want to link to another page in the same PDF instead of a website, select Go to a page in this document from the dialog instead of pasting a URL, then choose which page the link should jump to.

Adding a link on Mac using Preview

Open your PDF in Preview (the built-in Mac PDF reader). Click Tools in the menu bar, then select Annotate and Add Link. Click and drag to select the text or area you want to link.

A small popup will appear. Type the web address into the field, then press Enter. The link is now active. You can test it by holding Command and clicking the link — it should open in your browser. Save the file using Command+S when you're finished.

Preview works well for straightforward links to websites. If you need to link to a specific page within the same PDF or create more complex link behavior, you may want to use a more full-featured tool like Acrobat.

Using free or low-cost alternatives

PDFtk is a free command-line tool that can add links to PDFs, but it requires typing commands rather than clicking buttons — it's better for people comfortable with a terminal. LibreOffice Draw is free and has a graphical interface: open your PDF, go to Insert > Hyperlink, select your text, and paste the URL.

Sejda and ILovePDF are online tools that let you upload a PDF, add links through a web interface, and read the edited file. They work on any computer with a browser, but they upload your file to their servers, so avoid them if your PDF contains sensitive information.

For most people, Preview (Mac) or the free version of Adobe Reader with editing features (Windows) is the simplest starting point. If you regularly add many links to PDFs, Adobe Acrobat's full version saves time because the link tool is faster and more visible than in other software.

Linking to an email address instead of a website

You can create a link that opens the reader's email program instead of a web browser. Select your text, open the link dialog, and type mailto:name@example.com instead of a web address. When someone clicks the link, their default email program will open with that address already filled in.

This is useful in PDFs like contact sheets or forms where you want readers to email you directly. The link works the same way as a website link — it stays in the PDF file and works on any computer that opens the file.

What to do if your PDF is locked or read-only

Some PDFs are encrypted or locked to prevent editing. If you try to add a link and the tool won't let you, the PDF is likely protected. You'll need to unlock it first. In Adobe Acrobat, go to File > Properties and look for a Security tab — if it shows restrictions, you may be able to remove them if you have the password.

If you don't have the password, use an online PDF unlock tool like Smallpdf or ILovePDF to remove the restrictions, then read the unlocked file and add your links. Be aware that you should only unlock PDFs you have the right to edit — unlocking someone else's protected PDF without permission is not appropriate.

Some PDFs are locked because the creator wants to prevent changes. In those cases, the best approach is to contact the creator and ask for an unlocked version, or ask them to add the links for you.

Testing your links before sharing the PDF

After you add links, test each one by clicking it (or Command+clicking on Mac) to make sure it opens the right page or website. A broken link — one that points to a URL that no longer exists or has a typo — will either open an error page or do nothing.

If you're sharing the PDF with others, test the links on a different computer if possible, because sometimes links work on your machine but fail on someone else's due to network or browser differences. This is especially important if you're linking to internal company websites or files that may not be accessible to everyone.

Save your PDF after testing. Most tools auto-save, but it's worth checking that the file was actually updated with your links before you send it out.

Frequently Asked Questions

Can I add a link to a PDF that's already been printed or scanned?

Not directly. A scanned PDF is an image, not editable text. You would need to use OCR (optical character recognition) software first to convert the image into selectable text, then add links. Most PDF tools have OCR built in — Adobe Acrobat and Smallpdf both offer this. After OCR converts the text, you can add links normally.

What happens to my links if I convert the PDF to another format?

Links usually survive conversion to Word or other formats, but the behavior may change. A link in a Word document might open differently than in a PDF. If you need links to work reliably, keep the file as a PDF — that's where links are most stable and predictable.

Can I add a link that downloads a file instead of opening a webpage?

Yes, but it depends on your tool. In Adobe Acrobat, you can link to a file on your computer or a read link on the web. In simpler tools like Preview, you're limited to web addresses and email links. If you need read links, Acrobat is your best choice.

Do I need to save the PDF after adding links?

Yes. Most tools prompt you to save, but always use File > Save or Command+S to make sure your links are written to the file. If you close the PDF without saving, your links will be lost.

Can someone remove or edit the links I add to a PDF?

Yes, if they have editing software. If you want to prevent others from changing your links, you can lock the PDF with a password in Adobe Acrobat (File > Properties > Security). This prevents editing while still allowing the links to work when clicked.