What PDF version should I use for sharing, printing, and web viewing?
Choose a PDF version for broad compatibility, professional printing, or quicker web viewing—and understand when Fast Web View helps.
Choose the oldest PDF version that still supports the features your document needs. For routine sharing, an older compatible version is usually the safest choice; for commercial printing, use the version or PDF standard requested by the print provider; for online documents, enable Fast Web View when you want a PDF to begin loading page by page in a browser.
- Sharing with unknown recipients: Prioritize compatibility over newer features. Test the finished file in a PDF viewer and open pages containing images, tables, forms, or unusual fonts.
- Printing: Ask the printer what PDF version or delivery standard they accept before changing anything. A newer version is not automatically better, and changing versions can affect features used in the original file.
- Web viewing: Fast Web View reorganizes a PDF for progressive browser loading. It does not inherently reduce file size, so compress the PDF separately if download size is the problem.
Decide by the job
- Email or share widely → Use an older, broadly compatible version with PDF Compatibility. Some newer PDF features may be unavailable or changed.
- Send to a print provider → Follow the provider's requested version or standard. Their requirements matter more than a general compatibility choice.
- Publish for browser reading → Keep the needed version and enable Fast Web View. It helps loading order, not necessarily total download size.
- Preserve special features → Keep the current version unless a recipient has a problem. Some older viewers may not support every feature.
Steps before you send or publish
1. Save a copy of the original PDF so you can return to it.
2. Open PDF Compatibility and choose the target version based on the recipient, printer, or website use case.
3. If the PDF will be read online, turn on Fast Web View.
4. Download the result and inspect the first page, a text-heavy page, and a page with graphics or forms.
5. If the file is still too large, compress a copy after checking that text and images remain usable.
The central tradeoff is compatibility versus features: older versions tend to open in more software, while newer versions can retain newer PDF capabilities. Fast Web View is a separate delivery choice; it can improve the experience of opening a PDF online, but readers still need a browser or viewer that supports the file's PDF version.
Where CompanionPDF fits
CompanionPDF's PDF Compatibility tool lets you set the PDF version and optionally enable Fast Web View. It is free online, with no account or payment required, and files are deleted right after download. If you also need a smaller attachment, use Compress PDF or pack several files with Files to ZIP.
FAQ
Is the newest PDF version always the best choice?
No. The newest version may preserve modern features, but it can be less suitable when recipients use older PDF software. Choose it only when you need those features or know the receiving workflow supports it.
Does Fast Web View make a PDF smaller?
Not necessarily. Fast Web View prepares the file so a browser can begin displaying it before the entire file is downloaded. Use compression separately when the goal is a smaller attachment or faster full download.
Should I change the PDF version before sending a file to a printer?
Only if the printer asks for a specific version or standard, or if you have confirmed a compatibility issue. Keep the original file and review the converted PDF, especially pages with images, fonts, transparency, or complex layout.