FileFixer AI how-to
How to compress a PDF for email
Email systems often reject large PDF attachments, especially scanned reports, image-heavy invoices, certificates, and business documents. FileFixer AI helps reduce PDF file size before sending while keeping a downloadable PDF output. Upload your PDF, choose a compression option, review the required credits, and download the compressed file from your dashboard.
Compress a PDFSteps
Step 1
Upload your PDF
Choose the PDF file that is too large for email. The tool accepts PDF input and checks the file before processing.
Step 2
Choose compression settings
Use standard compression for everyday files, stronger compression for image-heavy documents, or target file size when your email system has a strict limit.
Step 3
Review required credits
FileFixer AI shows the required credits before processing starts. If the job fails before output generation, reserved credits are released automatically.
Step 4
Download the output
Download the compressed PDF from your dashboard and review it before sending it as an email attachment.
Before you process
Common problems to check.
The PDF contains scanned pages or photos, so stronger compression may reduce image quality.
The original PDF is already optimized, so the final size may only reduce slightly.
A strict mailbox limit may require target file size compression and output review.
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 every PDF be compressed enough for email?
No. Some PDFs are already optimized or contain images that cannot shrink much without visible quality loss.
Will compression change my PDF layout?
FileFixer AI aims to preserve the page layout, but stronger compression may reduce image quality or flatten scanned pages.