Compress PDF to 1 MB

Transcripts, resumes and multi-page forms often need to come in under 1 MB. This tool is set to 1 MB. It tries Optimize first, which keeps your text selectable, and only turns pages into pictures when that’s the only way to fit.

1 Choose files
2 Adjust
3 Download

Choose a PDF

or drag and drop here

PDF · 30 MB per file · 100 MB total

⌁ Files are processed on this device. How privacy works

Good to know before you begin

Reaching a small size usually means saving pages as pictures, which removes searchable text, links and form fields. The tool aims at or under the target, counting 1 KB as 1,000 bytes. If it can’t get there, you get the smallest version with a note saying so.

How to compress a PDF to 1 MB

Select Choose a PDF.
Confirm Target size reads 1 MB. If your limit is 2 MB or 5 MB, choose Custom and type 2000 or 5000.
Select Compress PDF →.
Read the result line: it says whether text was kept or pages were saved as images.
Select Download result ↓ and open the file to check it.

Some real limits

1 MB is a common limit, but plenty of portals allow more, and a bigger file is a sharper file. Limits we found on official pages, all checked Oct 30, 2026:

Dartmouth’s Guarini School asks for scanned transcripts, both sides, in a file of less than 1 MB and without password protection (admissions information).
The US National Visa Center accepts files of up to 2 MB each in CEAC (NVC scanning tips).
Canada’s IRCC allows 4 MB per file in the secure account and 5 MB in the IRCC Portal (IRCC help centre).
USAJOBS takes resumes and documents of 5 MB or less (USAJOBS help).

When your limit is above 1 MB, use Custom. A six-page scan we made (15.28 MB) came to 899.4 KB at about 90 DPI with the 1 MB target, and to 1.64 MB at about 125 DPI with Custom 2000. Both were readable. The second was clearly crisper.

Keeping your text

For a resume or a digital transcript, selectable text is worth keeping, because people and systems that search the file can then find your words. The tool handles this in order:

If the file is already under 1 MB, you get the original back, untouched. IRS Form 941 as downloaded (821.9 KB) came back unchanged.
If Optimize can get it under, it stops there, and text, links and form fields are kept.
Only if neither works does it save pages as pictures, and the result line says so.

For most real forms we tried, Optimize saved 1% or less, so a large digital PDF will usually end up as pictures. If that’s a resume, it’s better to re-export it from the program you wrote it in with smaller images than to compress it here.

If it doesn’t work

Over 1 MB after compressing: remove pages the form didn’t ask for, or split the file if multiple uploads are allowed. Some portals want each document as one file, though, so read the upload instructions before splitting.
Taking a long time: picture-based compression handles up to 100 pages and renders each one, so large scans take a while. Our six-page test took about 12 seconds on a desktop.
Message about a password: the tool can’t open protected PDFs. Use a copy without a password.
Text came out fuzzy: the result line says when it dropped below 72 DPI. Try a higher Custom size if the portal allows it.

On a computer or phone

On Windows and Mac, the result goes wherever your browser saves downloads. The tool also works in mobile browsers, but large scans take longer on a phone than on a laptop, and very long files can run out of memory. On iPhone, Safari saves the result to the Downloads folder in the Files app (Apple’s instructions). On Android, Chrome saves it to Downloads (Google’s instructions). If the tool stops partway on a long scan, close other tabs and try again, or use a computer.

Questions

Is 1 MB counted as 1,000 KB or 1,024 KB?

The tool aims at or under 1,000,000 bytes, so it fits whichever way the portal counts. Your computer may show the result as about 977 KB.

Can I make an exact 1 MB file?

No. The tool aims for the sharpest result at or under the target, not a file of an exact size.

Having trouble? Read the FAQ or visit help and contact.