Can pdf contain virus

How do I switch of these hyperlink warnings in Office 19? For us to be able to isolate the cause of your concern, kindly provide the following information:. You can also share as the file to see if the same error will occur on our end and for us to further isolate what is causing the issue. Check this link to know the steps on how you can share the file through OneDrive link. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. Both the hyperlinks in the third file return the described warning.

I have hyperlinks on my Excel sheet but I won't able to get any error on my end. Possible that the issue is with the content that you have on your Excel sheet or how you enter it. Kindly send us a file to further investigate your concern. Visit this link to know the steps on how you can share the file through OneDrive link. It will be your second layer of defense to detect unknown malware and protect if something still goes wrong.

Keep Macros disabled. Malicious files might persuade you to enable but you should not unless very much necessary. Whether a PDF has a virus or not, it does not solely depend on the file extension. It also depends on the vulnerabilities in the software which will be parsing it. For example, PDF reader that you are using potentially contains a buffer overflow vulnerability, then an attacker can construct a special PDF file to exploit that vulnerability.

Save my name, email, and website in this browser for the next time I comment. What's worse — such installable apps can be gateways to malware for your iPhone, iPad, or Android phone. So, it looks like free online libraries are not just tempting sources of freebies, but decent malware repositories, too. Luckily, there are places where you can download books legally and sometimes even for free. Ultimately, the safest way to obtain and read ebooks is to do it via an official distributor.

Especially so when your target device is a dedicated e-paper or e-ink device reader and not a fully-functional smart tablet in disguise Kindle Fire, we're looking at you. This way, you also won't have to worry about the format of the book you're about to download. Are ebook formats other than PDF as likely to contain viruses? But as said before, malicious code needs interpreters.

However, if such files are opened on your computer, there might be consequences. So if you really need a book, but it cannot be bought through a reliable online vendor, before you download from some shady website, try to:.

If all of this fails and you must get a book from a free online library, there are ways to keep your devices safe. If you suspect that a PDF file has already infected your computer, run a full antimalware check using your antivirus software.

The only bulletproof way to keep your device protected from malware in books and other media files is by running regular scans for viruses. Having real-time anti-malware protection on both your mobile and desktop devices is essential too. With Clario, you will get all of this plus a team of security professionals ready to help at the touch of your fingertips. Start your free 7-day trial with Clario now. Use these precautions, and don't download suspicious PDF files from non-trustworthy websites if you can avoid it.

It's better to pay for a book than for repairs to your machine if it gets infected. Happy reading! Senior content manager at Clario, cybersecurity and house music enthusiast. Digital Wellness. Mac Security. Malware Threats. With our anti-malware on, viruses have no chance of passing through. Hi there! We use cookies to give you the best online experience. For details, see our Cookie Policy. Disagree Agree. Our Features. Could a PDF file contain any type of malware?

Improve this question. Check this site: canarytokens. Add a comment. Active Oldest Votes. Improve this answer. Nav executing code has little to do with the OS, and everything to do with the reader.

Executing code is allowed to execute other code. Basically you have to trust the reader to not do something stupid like allowing a PDF to execute an application. Nav It's entirely feasible that a SELinux policy would block a pdf reader from executing any programs. The PDF links in that blog no longer work.

And generally PDF malware will predominantly be just the dropper, not the payload itself. Community Bot 1. Konrad Gajewski Konrad Gajewski 5 5 silver badges 16 16 bronze badges.