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Danger level 3
Type: Potentially Unwanted Application


AbridorPDF is a browser extension that may appear in your Google Chrome browser after you install free software from a questionable source. In all fairness, we need to mention that you can also install this tool knowingly from official sources but it is still less likely that you would want or could find such an extension on the web. We have categorized this potential threat source as a potentially unwanted program (PUP) because it does not really mean direct danger to you or to your computer. However, it is still not recommended that you keep this PUP on board if you do not want to be presented with manipulated search results, potentially unsafe third-party ads, and links. The presence of this tool in your browser may also indicate that there are malware infections on your system, too. If you want to keep your PC safe, we recommend that you remove AbridorPDF as soon as you can.

It is most likely that you install this PUP without your noticing it when installing a free software bundle that you have downloaded in a questionable way. For example, you can drop a malicious software package onto your system every time you download free program from shady file-sharing (torrent and freeware) pages. No wonder why we emphasize that you should always use official and reputable pages for downloading free software and updates as well. But you can also drop an infectious bundle onto your machine when you click on an unsafe third-party advertisement. This can happen when you are viewing a suspicious websites that promotes questionable third-party contents. The pages that are usually associated with unreliable ads are mostly online betting, gaming, dating, file-sharing, and porn-related websites. You need to stay away from these to avoid exposure to questionable content. However, if your computer is infected with adware programs or browser hijackers, it is also possible that you are presented with unreliable ads and links while browsing the web. This is why it is essential that you scan your system with a reliable malware scanner after you delete AbridorPDF from your computer.

Apart from these unreliable channels, you can also install this PUP directly off of its own webpage,, and the Chrome web store, The official page is quite a simple one. Practically, there is no information whatsoever apart from a pop-up window that tries to push you to install this extension in Spanish language. If you click on the huge “Descargar Ahora,” i.e., “Search Now” button, you can directly add this questionable extension to your Google Chrome browser. We recommend that, every time you add a new extension, you read the permissions you have to accept in the pop-up window carefully to know what you can expect from such a tool. If, by any chance, you have knowingly installed this PUP, we would still advise you to delete it for better security.

The name of this PUP reflects what it offers you. “Abridor” in Spanish means something like “opener” and this is what you can do if you click on the banner ad below the promoted search engine’s search field; you are taken to where you can unlock or open protected PDF files. You can do other PDF-related things too but do not be surprised to get redirected to other websites that try to push you to buy another PUP so that you can use the desired function. We do not advise you to click on this banner in the first place because you might end up on other questionable sights as you can see.

This PUP also sets as your default search engine so when you are using other search engines (e.g., Yahoo, Google, or Bing) you may experience spontaneous redirections to this questionable search engine after a few seconds while you are viewing the search results. Unfortunately, this promoted search engine may present to you manipulated search results. The creators of this PUP made sure that they mislead you by making this search engine quite resembling Google. However, the results here may include questionable promoted third-party advertisements and links that can cause further system security issues by dropping infections or redirecting you to fake websites operated by cyber criminals. If you do not want to experience online scams first hand, we advise you to remove AbridorPDF right now.

We have prepared the necessary instructions for you below this article, in case you would like to put an end to this PUP yourself. Please keep in mind that by removing AbridorPDF, you may not make your PC all secure again; this may take a bit more. We recommend that you install a trustworthy anti-malware program (e.g., SpyHunter) that can automatically take care of all kinds of potential and malicious threats that may try to sneak onto your system.

Remove AbridorPDF from browser

Google Chrome

  1. Tap Alt+F.
  2. Open More tools and pick Extensions.
  3. Next to the undesirable extension, click on the Trash can icon.
  4. In the pop-up, click Remove.
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