How to make a PDF smaller than 2 MB (or any size limit)

1 min · Updated November 2026

Open the PDF on Compress PDF, choose Under a size limit, type the limit the form asks for (for example 2) and click Compress PDF. BlendPDF tries several settings and keeps the best looking one that fits. If nothing fits, it says how small it could get.
Compress a PDF

Steps

  1. Choose Under a size limit and type the limit

    On Compress PDF, pick Under a size limit and type the number of megabytes the form allows, for example 1 or 2. Decimals work too: 1.5.

    Compress PDF with Under a size limit chosen and 1 MB typed in
  2. Compress, then check the new size

    Click Compress PDF. A few seconds later you see the new size, for example "229.41 KB now, under your 1 MB limit". Download the file, send it by email, or keep working on it.

    Your file is ready: the new size, under the 1 MB limit, and the Download button
  3. If it can’t get under the limit

    Scans and photos get much smaller; files that are mostly text, much less. If even the smallest version is over the limit, BlendPDF says so and gives you that smallest version. Remove the pages you don’t need, or split the file into two parts and send them one by one.

Good to know

Why 1 MB means 1,000,000 bytes here
Upload forms count a megabyte in two different ways. BlendPDF uses the smaller one, so the file passes either way.
Text stays sharp
Only the pictures inside the PDF get lighter. Text stays text: sharp, and searchable.
Already small enough
If the file is already under the limit, BlendPDF leaves it exactly as it is.

More guides