FileFixer AI how-to
How to reduce PDF size for upload
Upload portals and online forms often reject PDFs above a fixed file-size limit. This is common with scanned paperwork, receipts, drawings, certificates, and reports. FileFixer AI can help reduce PDF size before submission, show the required credits before processing, and keep the output available from your private dashboard.
Reduce PDF sizeSteps
Step 1
Check the upload limit
Confirm whether the form requires a PDF under 10MB, 5MB, 2MB, 1MB, or another limit.
Step 2
Upload the large PDF
Open the PDF compressor and upload the file that the portal rejected.
Step 3
Select a suitable mode
Use stronger compression or target file size when the portal has a strict MB limit.
Step 4
Download and test
Download the compressed PDF, review readability, then upload the new file to the portal.
Before you process
Common problems to check.
Scanned PDFs can require stronger compression than text-based PDFs.
Very small target sizes may make images less sharp.
Password-protected or corrupted PDFs may fail validation before processing.
Required credits are shown before processing starts.
Credits are reserved only when you run a job.
Failed jobs release reserved credits automatically.
If output is not generated, credits are returned to the account ledger.
Paid results stay available for 7 days.
Free job files are deleted after 24 hours.
FAQ
Common questions
Can I compress a PDF under 1MB?
Target file size options can help, but some PDFs may not reach 1MB without severe quality loss.
Are credits charged if compression cannot run?
If the job fails before output generation, reserved credits are released automatically.