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Version: 5

Gravity PDF's Officially Supported PDF Viewers

Gravity PDF officially supports Adobe Acrobat Reader and Adobe Acrobat Pro – Adobe is the company who developed the PDF specification. This means if a PDF generated with Gravity PDF has display issues in your PDF reader, but shows correctly in Adobe Reader, we won't consider it a bug.

FireFox PDF Rendering Issues

These days browsers are shipping with their own PDF viewing software so you don't have to install a third-party plugin. Firefox uses PDF.js, Chrome and Opera includes their own PDF plugin, Safari uses Preview and Microsoft's new browser, Edge, even ships with a document reader. This is great in theory, but in practice, it causes problems. Why? Because building software that correctly renders PDFs is hard (just take a look at the latest PDF specification and tell us it doesn't give you a headache). And if that's not a compelling enough reason, check Firefox's PDF.js current open issues.

If you notice your generated PDF displays incorrectly in your browser's viewer, the best option is to save any PDF documents to your computer and open them with Adobe Reader.