Win7 system how to open PDF file pop up numbers out of bounds

One, maybe your pdf file is corrupted. or the PDF software is corrupted. You can uninstall the PDF software first and then reload it. Then try to open the PDF file, and if the same file appears, it means the PDF file is corrupted.

Two, a lot of PDF documents, originally is a text version, there are pictures, may be typesetting problems, the page will appear in the number of Cross-border error tips, very annoying. For this type of document can not handle file size, you may consider printing for processing, printed as a picture, the PDF will automatically generate a page border, and then optimize processing, can be smaller than the original text version of the document, and there will be no number of errors across the line.