How to get a PDF under 2 MB without ruining the paperwork
The portal rejects your file for being too big. Before you lower the resolution of everything, find out where the weight comes from: it is rarely where people think.
Published 2026-08-13 · Updated 2026-08-23
The portal accepts 2 MB and your PDF weighs 8. Before you crush the resolution of the whole document, it pays to know where that weight comes from, because it is rarely where people assume.
Where a PDF's weight comes from
Three usual suspects, and each one calls for a different remedy.
Scanned images. If the document came out of a scanner or from phone photos, every page is a photograph at 300 dots per inch or more. That is where nearly all the volume tends to sit.
Embedded fonts. A file with several typefaces drags along the whole font file for each family, even when it uses barely twenty characters of any of them.
Leftovers from the program that made it. Thumbnails, hidden layers, revision marks, earlier drafts of every sheet. None of that shows when you open it.
Open your PDF and look at a page magnified to 400%. If the text looks pixelated, it is a scan and the weight is the images. If it stays sharp at any zoom, it is real text and the weight is somewhere else.
What to do if it is a scan
Compress first and look at the result before touching anything else. An eight-megabyte scan often drops below two, and it reads the same on screen and on paper.
Do it now on TotalPDF KitCompress PDFIf it is still over the limit after compressing, the problem is the number of pages, not the quality. That is when you decide what is expendable.
What to do if it is text
Squeezing a file that is already text gives you little room: there are no photographs to lighten. You get more out of removing what is not needed.
Check whether the file carries blank pages at the end, duplicated cover sheets or annexes the procedure never asked for. Plenty of submissions travel with twenty spare sheets because somebody chained two files together without reading them.
Do it now on TotalPDF KitRemove PagesThe mistake of lowering the resolution of everything
The usual reflex when faced with a size cap is to apply the harshest setting to every sheet. It slims the file and wrecks the submission: an ID number, a signature or a registry stamp comes out blurred, and the desk rejects it.
Always start with the middle setting. If it meets the limit, you are done. Only go lower when there is no alternative, and check at full screen that the critical data is still legible.
Check the weight before you send it
The figure your computer shows is the file on disk, the same one the portal will read. No surprises there. What does surprise people is that some portals count the limit across all attachments, not per file. If you are uploading three documents of 1.5 MB against a 2 MB limit, you have a problem even though each file passes on its own.
In that case, merge them into a single PDF and compress the result, which usually weighs less than the sum of the parts.
Do it now on TotalPDF KitMerge PDFIf the document carries sensitive data
A file with personal data that is going to travel by email deserves a password. Set it after compressing, not before: encryption stops the compressor from doing its job.
Do it now on TotalPDF KitProtect PDFSummary
Work out whether it is a scan or text. If it is a scan, compress at the middle setting. If it is text, remove pages. If it is several files against a shared limit, merge them first. And always check that what matters is still legible before you hit send.