JPG to PDF for email
Build compact, readable PDFs that fit attachment size limits.
Who this guide is for
This guide is for anyone sending image-based documents by email and trying to stay under attachment limits. It is designed to keep files compact without sacrificing basic readability.
Step-by-step workflow
- Add images in order and choose Single PDF output.
- Start with lower DPI and medium-high compression.
- Enable Strip metadata and keep one page size for consistency.
- Export, check total size, then send with a clear filename and subject.
Recommended settings
- Standard email attachments: 120 to 144 DPI, medium-high compression.
- If text looks soft: increase DPI slightly before lowering compression.
- For strict limits: split into two smaller PDFs when needed.
Common mistakes to avoid
- Compressing to the point where small text becomes hard to read.
- Attaching raw images instead of a single organized PDF.
- Ignoring recipient limits that vary by provider and workplace policy.
Practical tip
A short filename like client-invoice-apr-2026.pdf improves searchability in email threads and cloud storage later.
Email limits and practical targets
Email systems often allow attachments somewhere between 10 MB and 25 MB, but the practical target should be lower because messages can grow during sending. If the recipient is using a workplace, school, or government mailbox, large attachments may be blocked even when your own mail app sends them.
Email-friendly settings
Start with 120 to 144 DPI, medium-high compression, Strip metadata on, and one image per page for documents. If you are sending receipts, 2-up layout can reduce page count while keeping totals readable. Avoid 4-up unless the recipient only needs a quick visual reference.
When to split instead of compressing harder
If the PDF remains too large, splitting it into two named files is often better than destroying readability. For example, send receipts-part-1.pdf and receipts-part-2.pdf rather than one highly compressed file where totals are hard to read.
Check before sending
- Open the PDF from your downloads folder.
- Check the smallest text at normal zoom.
- Rename the file clearly before attaching it.
- If the file is sensitive, consider whether email is the right delivery method.
Subject line and filename
A clear PDF can still create friction if the recipient cannot identify it. Rename the file before attaching it, especially for invoices, receipts, classwork, and forms. Use names such as april-expenses.pdf or application-documents.pdf instead of download.pdf. If you split a large file, include part numbers in both filename and email text.
Privacy note for email
Local conversion keeps source images out of the conversion server, but email is a separate sharing channel. Once attached, the PDF may be stored by mail providers and copied to recipients. For sensitive documents, consider secure upload portals, encrypted storage links, or the recipient's preferred protected channel.
When the file is still too big
If the PDF is still too large after using email-friendly settings, do not keep raising compression until the file looks damaged. Remove duplicate photos, split the document by topic, or retake dark images that contain noisy backgrounds. A slightly larger readable PDF is better than a tiny attachment the recipient cannot use.
Related help
Reviewed on April 29, 2026 by JPEGtoPDF.io. See About, Editorial Policy, and Privacy.