Download 15 MB PDF file for testing
Open the single page and check document-upload behavior. The preset is 15 MiB (15,728,640 bytes); choose MB for decimal megabytes.
1 MB = 1,000,000 B · 1 MiB = 1,048,576 B
Advanced: test an upload limit
Enter the byte limit above, then choose one byte below, the exact limit or one byte above. Each choice uses the same base: 15,728,640 B. Generate and download each file to test your endpoint.
Where a 15 MB PDF comes up
- Testing portals that advertise a "maximum 15 MB" document upload, often for application or claim forms.
- Showing users why a PDF that is "only 15 MB" still bounces from a 20 MB mailbox.
- Checking that a document viewer stays responsive when the file is several times larger than a typical scan.
Limits it lands on
- If a form means 15 MB as 15,000,000 bytes, this 15 MiB file is 728,640 bytes too large, about 4.9% over.
- Base64 encoding for email turns it into roughly 20.97 million bytes, so it no longer fits a 20 MB message limit such as Outlook's default for internet accounts.
- It passes Telegram's 20 MB getFile limit for bots but is over the 10 MB payload cap of API Gateway REST APIs.
What is inside the file
A single A4 page with two lines of Helvetica text. The page itself needs 722 bytes; a 15,727,918-byte stream that no page references carries the rest.
The cross-reference table and startxref value point to the real offsets, so viewers jump straight to the page without reading the filler.
Questions
Why does a 15 MB form reject this 15 MB PDF?
Because the file is 15 MiB (15,728,640 bytes). A limit written as 15,000,000 bytes is smaller. Switch the generator to decimal MB to create a file of exactly 15,000,000 bytes.
Will compressing the PDF make it smaller?
Yes. The padding is a run of identical characters, so any PDF optimiser that recompresses or drops unused objects will shrink it to a few kilobytes.
Reference and checks
Format reference: PDF 32000-1.
Preset target: 15 MiB (15,728,640 bytes). Verify the downloaded file's byte count.
Generate another size in this format · Technical notes for every format · Guide to testing file upload limits · Data processing and privacy
Related tools: Merge PDF · Compress PDF.
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