Both .pdf and .pdfx files are PDF documents, just saved under different specs with extension that distinguishes PDF/X from standard PDF. If you really need to, you can save PDF files with different specs with Adobe Acrobat or similar tool for PDF documents.
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Conversion of pdf file format to pdfx file format beta
Search for pdf to pdfx converter or software able to handle these file types.
Convert Adobe Portable document format to PDF/X document.
We have found 2 software records in our database eligible for .pdf to .pdfx file format conversion.
Microsoft Windows software 
- convert pdf to pdfx on Windows
Adobe Acrobat
A dedicated software for handling PDF documents
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from pdf file | Yes, Adobe Acrobat supports pdf file conversion as a source file type. | Yes | Yes | pdf editor | Yes | No | No | No |
to pdfx file | No | Yes | No | pdfx editor | Yes | No | No | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned pdf to pdfx. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software 
- convert pdf to pdfx on OS X
Adobe Acrobat for Mac
Mac version of Adobe's PDF handling software
Additional links: Open pdf file, Open pdfx file
A pdf file extension is mainly used for Adobe Portable document format, commonly referred to as PDF. All programs that create some sort of documents or projects offer the possibility to export their format to PDF format. A free PDF viewer (Adobe Reader) is available for download from Adobe website.
PDFX
Files with pdfx extension can be occasionally found as special special subset of standard PDF document format introduced with the ISO 15929 and 15930 standards.
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