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
Mobile Messenger document sends stall once PDFs climb past a practical ~25 MB zone. Lock Web quality here, download, then attach in the chat yourself.
Drop your PDF files here
or click to browse · Up to 20 files at once
Receipts, forms, and travel documents shared in a Facebook Messenger chat should not detour through an unknown compressor before they reach the conversation. This page shrinks the file in the browser toward a practical 25 MB chat comfort zone, and the document never leaves your device.
The PDF is re-encoded in tab memory and never reaches our servers. You download the lighter file and attach it in Messenger yourself, so only Meta’s chat sees what you choose to send.
That local-only step matters when a receipt carries a name or an address you would rather not hand to a random “free compressor” that quietly retains uploads.
Mobile Messenger document sends grow unreliable once a PDF climbs past a practical 25 MB zone, a threshold that shifts with client and version. The upload spinner hangs, the recipient sees nothing arrive, and the chat stalls.
People then fall back to a burst of page screenshots, which smears fine print and scatters a single document across the thread. A Web pass that lands under the practical chat line keeps the file as one clean attachment.
Because the ceiling is fuzzy and client-dependent, aiming comfortably under 25 MB is the reliable way to make a send actually complete on cellular data.
| Problem it solves | Messenger PDF send hangs / never delivers |
|---|---|
| Comfort zone | ~25 MB for reliable chat sends |
| Preset | Web · 96 DPI · 56% JPEG |
| Colour | Kept for receipts and forms |
| Privacy | Browser-only before the chat attach |
| Sibling pages | WhatsApp · Telegram |
Messenger’s document limit wobbles with the app version, so this profile aims a firm-but-readable Web quality under a practical 25 MB line rather than chasing a number the client will not confirm. Colour stays on for receipts and forms while metadata bloat is discarded.
If a send still hangs on a weak connection, the fix is a stronger pass or a link rather than another retry. A file that comfortably clears the practical zone is far more likely to deliver on the first attempt.
Like other chat apps, Messenger’s real limit is delivery reliability on mobile data, not a published cap. Aiming under a practical 25 MB zone is what turns “sending…” into an attachment the other person can actually open.
Its messaging siblings lock different comfort bands: the WhatsApp page steers near a ~16 MB comfort band with the paperclip Document path, and the Telegram page targets a ~20 MB Files-tray band. When the audience is an inbox rather than a chat, the Gmail page handles the 25 MB attachment world.
A long packet sends more reliably once split with Split PDF, and a firmer squeeze is available on Compress PDF when a send keeps stalling.
The wider catalogue, including merge and reorder, sits under PDF tools.
I keep this page because PDF attachment limits for Messenger 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.