PDF document is a document format published by Adobe, which is often used for printing or document publishing and has a wide range of uses. Compared with word file, Pdf file can restore accurate color effect when printing. Recently, a friend said that the pdf file of win 10 activation-free system was garbled after opening, and the original content could not be seen at all. What happened? Compatibility is usually a problem that leads to confusion of pdf files. Let's take a look at the detailed solution steps.

Specific solutions:

1. First, we need to search and download a tool with PDF editing or viewing function in the browser.

2. You can download a PDF tool to open a PDF file at will (take Bian Xiao's fast PDF editor as an example). After opening the PDF tool, click File-Document Properties;

3. After entering the document properties, switch to the "Security" tab to see the list and types of text names supported and needed by the current PDf;

4. Know the fonts that can't be displayed normally, and then search and download the corresponding fonts in the browser. After extracting the font, right-click the corresponding font and select "Install". Or copy the font to the directory as shown.

It is very common for pdf files to be garbled, and garbled pdf files are generally caused by incompatibility between PDF software and system. Please refer to the tutorial to fix it.