The first significant difference between PDF and PDF/A is the o888099 restrictions when it comes to specific types of content. You cannot implant audio, video, and executable files in a PDF/A since the PDF viewer would not open those on its own. There is no way to foresee if the proper software for them will be obtainable in the future.
Pictures are enabled in a PDF/A document given that they are embedded, along with the fonts to be used in interpreting the texts. PDF/A does not permit the file to reference any outside resource as there is no telling whether that resource would be available. PDF/A files cannot be encrypted. PDF/A does not permit audio, video, and executable content while PDF does
Some people say that they will find it easier to read documents that are in PDF but what exactly does PDF mean? PDF means Portable Document Format. This is one of the features that are being offered by Adobe. The PDF can be downloaded, edited, and changed regardless of whoever decided to make it in the first place.
The PDF/A is known to be something that you will use if you want to make sure that the original content of the PDF will remain the same for a long time. There are instances when data will change so much because of the editing of different people. PDF/A will archive the original content of the document.
E. Barnes, Professional Gamer, Professional Gamer, Washington
Answered May 24, 2019
PDF stands for Portable Document Format, which is apart of software by Adobe. PDF's allows a document to be viewed or edited, regardless of who created it. PDF/A is an ISO-standardized version of PDF. It is used for archiving information. This is useful is preserving information and ensuring that no matter the age of the document, the content will still be shown.
PDF/A has stricter standards than PDFs. In PDF/A, audio and video are unable to be embedded or executed. Though audio and video aren't allowed, photos are. PDF/A files aren't able to be encrypted because the source wouldn't be able to be found.