Split a PDF by Approximate File Size is best approached as a local PDF workflow. In PDFsam Basic, choose the relevant module before selecting source documents. Back up important PDFs and verify the completed result, rather than assuming an operation succeeded because the application closed its progress indicator.

Step-by-step instructions
- Open the size-based split option.
- Load the PDF and specify the approximate maximum part size.
- Set the destination and run.
- Check actual sizes and page boundaries of resulting files.
Example and expected result
For the task split a pdf by approximate file size, start with a duplicate of a small, nonconfidential PDF. Follow the steps using a separate destination path, then open the saved output in your usual PDF reader. Confirm the count and order of pages, the readability of the document, and that the original is still intact.
Important checks and limitations
If you need to change the words inside a PDF page, add OCR, or compress scanned image data, do not assume those features exist in PDFsam Basic. Compare the separate Visual and Enhanced editions before selecting a product.
Frequently asked questions
How do I split a pdf by approximate file size?
PDFsam Basic supports splitting PDFs according to a target output size.
What should I check before using this PDFsam method?
PDF content compression makes exact output sizes difficult; verify limits before emailing parts.
Can I do this offline on Windows?
PDFsam Basic processes document pages locally on supported Windows computers. First confirm that split a pdf by approximate file size is a supported Basic workflow; paid-only features require a different edition.
References
For edition details and updates, consult the developer’s primary source collection, including PDFsam Basic features, downloads, release notes and documentation. Check the installed edition and version before following a control name exactly.