Change PDF Versions using Acrobat. Courts and other regulatory agencies typically require firms which e. File to provide a specific version of PDFmost often PDF 1. Acrobat 5 format. Other times, you may need to change the version of a PDF you have to ensure compatibility with a client or colleague using an older version of Adobe Acrobat. In this article, Ill cover the following How to check the version of a PDF document. How to change the PDF version. Ill also cover some other related topics about changing PDF version. Read on to learn more. PDF Versions and Backwards Compatibility. Certain PDF documents may only be viewed in newer versions of Acrobat. Edit, convert, and sign PDFs with Acrobat Pro. Keep viewing PDFs when the trial ends. More powerful than other PDF software, Adobe Acrobat Reader DC is the free. Microsoft Visual Studio 2010 Sdk Setup Error Code. Additional information about Adobe Reader, technical support, and installers for other platforms are available from Adobe. Access. adobe. com also provides a set of. Sudo apt install evince. A lightweight and easytonavigate PDF reader, Evince also loads documents very quickly. Unfortunately, graphicheavy PDFs can take a while. For example, if you send a PDF Package to a client using Acrobat 6, they will be prompted to download the latest version of the free Adobe Reader to view it. The following chart is not comprehensive. It is intended to cover the specific instances a typical legal user may encounter. Acrobat Product Version. PDFVersion. New Features Affecting. Backwards Compatibility. Acrobat 8. PDF 1. Reader Enabled Forms. PDF Packages. PDF 1. XML Forms. Acrobat 7. PDF 1. I have installed Acrobat Reader DC a number of times but still get an error message Could not find Acrobat External Window Handler when trying to open. Hello, Ive got an issue with the 3D PDFs on my machine. It worked properly with the previous version of the Acrobat Reader v8, I guess,but after I. Silently Install Adobe Reader DC Patch 17. Package Library Download and install PDQ Deploy Enter License Key information Import the Adobe Reader DC. Reader Enabled Review. Security Envelopes. XML Forms. Embedded multimedia including 3. D content. Bookmark Compression. Acrobat 6. PDF 1. Acrobat 5. PDF 1. Saving to a Previous PDF Version using Reduce File SizeThis option is available in both Acrobat Standard and Professional. Choose Document Reduce File Size. Choose the PDF compatibility required. Click OKWhat Reduce File Size actually does is a bit of a mystery. Documents containing color images generally show the most reduction in file size. Typical legal documents such as scanned black and white documents or simple text only documents generated from word processing will show little difference in file size. In fact, they may grow slightly. Saving to a Previous PDF Version using the PDF Optimizer. The PDF Optimizer is a feature of Acrobat Professional only. Using the PDF Optimizer you can Change PDF version compatibility. Selectively compress images to reduce the size of scanned images. Unembed fonts. Flatten Form fields. Remove bookmarks. Remove an embedded search index. You can select and carry out multiple operations or simply change the version. Follow these steps to reduce file size using the PDF Optimizer in Acrobat 8 Choose Advanced PDF Optimizer. FileSave asChoose Adobe PDF Files, Optimized from the Type menu. Click the Settings button. Set the PDF Compatibility. Click OKChanging PDF Versions in Batch. The PDF Optimizer may be used with the Batch Processing feature of Acrobat Professional. You could, for example, change the PDF version of hundreds of files at a time. See my article on Batch OCR to learn how. Additional Discussion. Acrobat cannot make every PDF readable by an earlier version, especially those that contain embedded multimedia objects. If this is the case, use the PDF Optimizer to remove embedded media. As a general practice, I dont recommend saving to Acrobat 5 unless required by a regulatory office or court. Since older, full versions of Acrobat can co exist on system with the latest Adobe Reader, Open compatibility isnt much of an issue. Reader is free, and thats a compelling reason to install it. D data parsing error issue with Reader 9. Adobe Community. Hi,My first post, i work in technical support and i have run in to this problem 2 times. The problem files did open in another computers with same setupI work in a really big company where the machines are basically the same. Reinstalling adobe reader did not help, registry cleaning and reinstalling did not help,the problem was solved by installing Adobe Acrobat Professional 8 which opened the file. Well this not very good solution so I was thinking that maybe there would be a better way, like actually fixing the problem, and thiswas the only post i could find about this issue which made any sense. Unfortunately I dont have the problem file anymore, so this is bascially just me saying that there are others as well with this problem. Windows XP SP 3 and Adobe Reader 9.