Drop your PDF files here
or click to browse · Up to 20 files at once
PDFMax ~100MB per file
No upload · 100% private
All tools
Seeing “attachment too large” in Gmail? This page is locked to a 25 MB email preset so you can shrink the PDF on your device, check the size, then attach — without uploading the file to a random compressor.
Drop your PDF files here
or click to browse · Up to 20 files at once
If Gmail says the attachment is too large, you do not need a website that asks you to “upload to compress.” On this page the file never leaves your laptop: the browser reads it, shrinks pages with a locked email preset, and you download a smaller PDF to attach yourself.
That is the difference between convenience and privacy. Contracts, tax packets, and medical letters stay in tab memory until you close the tab — VeloTools never receives a copy.
When you are ready, attach the download in Gmail the normal way. Compression finished locally; only Gmail sees what you choose to send.
Everyday Gmail accounts enforce a hard ceiling near 25 MB per message. The body, inline images, and every attachment share that budget, so a scanned lease or slide deck that looks “only a little big” still fails Send.
Phone camera exports and exported PowerPoint packs are the usual culprits: full-color pages at high DPI balloon past the limit even when page count is modest. People then paste screenshots into Drive links — workable, but not what a recipient who expects a simple attached PDF wants.
This URL exists for that exact failure: get under 25 MB while keeping the file readable in Gmail’s preview on phones and desktop.
| Problem it solves | Gmail attachment too large / over 25 MB |
|---|---|
| Size check | 25 MB before download |
| Preset | Email-friendly Web quality (readable on phones) |
| Color | Kept (contracts and slides stay in color) |
| Privacy | No upload to VeloTools |
| Related tools | Split PDF · main Compress PDF |
We lock a Web-quality path around 96 DPI with moderate JPEG quality so text stays crisp in Gmail’s viewer without preserving print-shop masters. Metadata that only inflates the file is stripped; you keep a normal PDF you can open anywhere.
It is gentler than Screen modes used for LMS homework because Gmail’s 25 MB ceiling gives more room than a 5 MB course upload. If you still miss the mark after one pass, split chapters or run a stronger pass on the main compressor — do not crush quality first.
Gmail’s well-known ceiling is about 25 MB per message for everyday accounts. Workspace admins can raise it, but most people still hit the classic wall with scanned packets and slide decks.
This page is tuned for that moment: keep the file readable in Gmail’s preview, strip bulky metadata, and show a warning before you waste time on a failed Send. It is not meant for print-shop masters — keep your original if you still need perfect vector text later.
Compared with Outlook’s tighter 20 MB habit, Gmail gives a little more room, so we use a gentler email preset here. If one file is still huge after compressing, split the PDF or run a second pass on Compress PDF with the Screen preset.
Also leave a little headroom: embedded images in the email body count toward the same message size. Browse more utilities on PDF tools when you need merge or reorder after shrinking.
I keep this page because PDF attachment limits for Gmail kept failing with upload tools or generic presets. Here you pick the Screen/Web preset that fits the channel, compress locally, then attach. Limits and architecture are documented in Lab Notes — this URL is a micro-instrument for one job, not a keyword clone.