Compress file to 1024KB or 1MB
Compress images or PDFs toward 1024KB, about 1MB, for forms, applications, resumes, attachments, and strict upload limits.
Use this page when a website asks for a file under 1024KB, 1MB, or a similar upload limit and you need one place for images and PDFs.
Set 1024KB and compress
Upload the file, choose KB, enter 1024, then download the result when compression finishes in your browser.
Match the upload wording
1024KB, 1024 KB, 1MB, and under 1MB usually describe the same upload limit.
Choose the exact number from the form first, then use format or resize controls only when the portal still rejects the file.
Exact pages for each format
Pick the closest tool
Start with the format your upload form asks for. If it accepts several formats, JPG is usually efficient for photos, PNG is useful for screenshots, and PDF is best for documents.
Compress PDF to an Exact KB Size
Compress PDF files to an exact size for forms, portals, and email attachments.
Compress JPG to an Exact KB Size
Reduce JPG and JPEG files to the size you need for forms, portals, and everyday uploads.
Compress PNG to an Exact KB Size
Shrink PNG images to the size you need while keeping screenshots, artwork, and graphics clear.
Questions people ask
Is 1024KB the same as 1MB?
1024KB is commonly used as 1MB. If a portal says PDF 1024KB, file under 1MB, or maximum 1MB, this target is a good match.
Does this work for both images and PDFs?
Yes. ExactSizer accepts JPG, PNG, WebP, GIF, and PDF files in the browser, then uses the matching compression path for the file you upload.
What if the file cannot reach 1024KB cleanly?
Some PDFs and detailed images need stronger settings or smaller dimensions. Start at 1024KB, then adjust resize or PDF profile controls only if needed.