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Split PDF by Size

Split PDF by file size so each part stays under a limit, such as an email attachment limit. File names show the pages in each part.

Six A4 pages, each with an image of about 0.9 MB that cannot be compressed. With a 2 MB limit the ZIP should hold three parts of two pages; each name shows its pages.

Your documents stay on this device. Tool downloads and usage statistics do not include file contents.

Local limits: Max single file: 60 MB

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A practical guide

Keep every part under a size limit.

  1. Add one PDF of up to 60 MB.
  2. Set the largest size for each part in MB.
  3. Run the task and open the ZIP to check the parts.

Try this example

A 48 MB scanned report is too large for a 10 MB mail limit. Set 9 MB per part and the ZIP holds several files, each named with its page range.

Before

  • Report, 18 MB

After

  • Part 1: pages 1-9, under 10 MB
  • Part 2: pages 10-16, under 10 MB
Input and expected output for this task. Illustrative example.

Before you start: A single page larger than the limit gets its own file, marked as over the limit. Check every part before you send it.

Make a large part smaller
What you get

Split a PDF into consecutive parts that each stay under the size you set, for example an email attachment limit. File names show each part's pages.

Limits and important details

One PDF, up to 60 MB and 500 pages; 1-60 MB per part and up to 200 parts. Every part is saved and checked against the limit. A single page larger than the limit gets its own file marked over-limit.

Example

Split the sample with a 2 MB limit: its six image pages of about 0.9 MB each give three parts of two pages, named with their page ranges.