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Direct answer: Select a target threshold, optimize the document below, then use the displayed actual output size to confirm whether it meets the portal's requirement. Processing is executed 100% in your browser; files are never uploaded to usecos.app.
Supports PDF documents, Scanned pages, JPG, and PNG files. Processed 100% locally in your browser.
Upload a document to begin instant client-side compression.
Target size: Under 200 KB (Most Popular)
Official document submission caps, DPI resolutions, and formatting guardrails across major Canadian and international filing portals.
| Platform / Portal | Maximum Upload Cap | Recommended Preset | Formatting & OCR Requirements |
|---|---|---|---|
| IRCC / Express Entry / Study & Work Permits | 2 MB (web forms) to 4 MB (portal uploads) | Target Under 500 KB or 1 MB preset | 300 DPI greyscale / color; no password encryption; single combined PDF |
| CRA My Account (Submit Documents) | 150 MB total / 10 MB per individual file | Under 200 KB for tax slips / 500 KB for returns | 200–300 DPI; legible numbers; PDF/A or standard PDF |
| ATS Job Portals (Workday, Taleo, Greenhouse, Lever) | 2 MB to 5 MB per resume file | Target Under 200 KB for 1–2 page resumes | Preserve live vector text layer; do not rasterize/flatten resume to scan image |
| US State Department / CEAC / USCIS | 2 MB strictly enforced upload limit | Target Under 300 KB or 500 KB preset | Portrait 8.5"×11" or A4; 300 DPI max; uncompressed bitmaps rejected |
| Provincial Tribunals (LTB, LAT, HRTO) & Courts | 5 MB to 10 MB per evidence bundle | Target Under 500 KB preset per exhibit | Consecutively numbered pages; searchable text layer required |
1. PDF re-serialization: The tool rewrites a PDF using standard PDF object streams inside the browser. This can reduce structural overhead, but does not promise to shrink embedded images or every document.
2. Exact result verification: The displayed output is measured from the generated download, not estimated from the selected preset. If it misses your limit, use a document editor or scanner that can reduce image resolution.
3. Client-Side Security: Processing takes place within the browser's sandbox environment. No tokens, documents, or personal credentials leave your local device.
No. The optimizer shows the actual output size and clearly marks whether the selected threshold was met. Check the portal rules and the downloaded file before submitting.
Files are processed in your browser and are not uploaded to usecos.app. Before using any web-based tool with highly sensitive documents, review its privacy policy and your organization's handling requirements.
Many job, university, and government upload forms set file size caps, often between 100KB and a few MB. The limit differs by portal and can change, so check the size rule shown on the specific form you are submitting to.
No. Image uploads are compressed to JPG files. Use a dedicated PDF creator when a portal requires a PDF document.
Direct answer
Select a target file size threshold, optimize a PDF or image locally, and verify the measured download size before you submit it. Processing happens in your browser memory; files are not uploaded to usecos.app.