UnderLimit PDF
Browser-local PDF size probe

Get the PDFunder the limit.

Declare the portal's maximum size. UnderLimit rebuilds the document locally, reports the actual result, and never uploads your PDF.

50 MB input

60 pages

No login · no storage

Loading the local compression console…

Capability boundary

Smaller is not automatically better.

It does

Rasterize pages, try five bounded quality profiles, and report the final byte size.

It does not

Guarantee every target, preserve forms or links, perform OCR, or validate a portal submission.

Privacy

PDF bytes stay in this browser tab. They are not sent to our Worker, Clarity, or Cloudflare Web Analytics.

Your check

Open the download, zoom into small text, verify every page, then use the portal's own validation.

Field manuals / crawlable HTML

01

Compress a PDF to 2 MB

Start with the portal limit, verify the byte result, and keep a fallback when the source is image-heavy.

Read manual →

02

Compress a PDF to 1 MB

Use a tighter quality ladder for a common application limit without treating a smaller file as an automatic success.

Read manual →

03

Compress a PDF to 500 KB

Recognize when a very small target requires rescanning, splitting, or a different submission path.

Read manual →

04

Compress without losing readability

Understand why resolution, JPEG quality, page count, and scan contrast change the result.

Read manual →

05

Reduce PDF size for upload

Turn a vague “file too large” error into a measured workflow with a declared target and final inspection.

Read manual →

06

Fix a PDF that is too large

Diagnose size, format, page, and browser failures before repeatedly compressing the same document.

Read manual →

07

Local versus cloud compression

Check where file bytes go before you process tax, school, identity, or immigration documents.

Read manual →

08

Compress PDF for a government portal

Prepare a readable upload while verifying the current rules on the receiving agency’s own website.

Read manual →

Planned price / payment not open

$4.99 one-time Pro export pack

Planned: batch queues, text-preserving options, and a printable verification report. No checkout exists today.

Join the early-access list