Compress PDF to 1 MB
Shrink PDF file size while keeping the best quality possible.
Runs in your browser — files never leave your device
or drop files here
How to compress a PDF to 1 MB
Job portals and many online forms cap uploads at 1 MB. That's enough for sharp documents once scans and photos are compressed properly. This page is set to 1 MB and keeps the highest quality that fits.
Add the PDF.
Leave 1 MB selected, or choose another size.
Click Compress PDF and download the result.
Fitting a 1 MB limit
1 MB is a common cap on learning platforms, job boards and web forms, and the point at which many email systems begin to complain about attachments when several are included. Nearly all typed documents are already under it. Scans fit up to a few dozen pages in black and white, or roughly ten pages in colour, before any resolution is lost.
This page sets Target file size to 1 MB, enforced as 1,000,000 bytes. If a portal states 1 MB but rejects a 990 KB file, it is counting 1 MB as 1,024 x 1,024 bytes and your file should still be under that; otherwise try 900 KB in the size box.
Keeping photographs presentable
At 1 MB the compressor usually only needs the first rungs of its ladder, which lower JPEG quality slightly at full size. Photographs stay presentable and text in scans stays sharp. If a document is far over the limit, for example a 40 MB scan, the tool will go further down the ladder; in that case it is better to lower the scan resolution at the source or split the file than to accept very soft images.
Compress PDF to 1 MB FAQ
No. Files already under the limit are left exactly as they are.
Almost always because of scans or photos. Text and vector graphics take very little space.
No. The tool runs entirely in your browser, so your files are processed on your own device and never leave it.
Yes. Every PDFCraftly tool is free, with no sign-up, no watermark and no email required.
Guides
- USCIS File Too Large? Compress a PDF Under 12 MB for Evidence UploadsUSCIS online accounts reject evidence files over 12 MB and password-protected PDFs. How to shrink a scan under the limit without uploading it anywhere.
- CEAC Document Upload: Get NVC Scans Under the 4 MB File Size LimitThe State Department's CEAC portal takes immigrant visa scans up to 4 MB each, in color, as PDF or JPG. How to compress an I-864 or civil document to fit.
- Compress a PDF for a UK Visa Application: UKVCAS, VFS Global and TLScontact Upload LimitsUKVCAS takes PDF, JPG and PNG files up to 7.25 MB each; VFS and TLScontact show their limit on the upload page. How to shrink visa documents to fit.
- Compress a PDF for a UK University Application: 2 MB, 4 MB and 5 MB Portal LimitsLSE and Edinburgh cap each upload at 2 MB, Oxford at 4 MB and UCL at 5 MB. How to compress transcripts, certificates and references to fit each portal.
- IRCC File Size Limit: How to Compress a PDF Under 4 MB for Your UploadIRCC accepts 4 MB per file in most online accounts and 5 MB in the IRCC Portal, one file per field. How to compress and combine PDFs to fit.
- ImmiAccount Attach Documents: How to Compress a PDF Under 5 MBImmiAccount accepts documents up to 5 MB each and up to 60 per person, and rejects encrypted PDFs. How to compress, merge and unlock files to fit.
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