Check a PDF Before Sending
Direct answer
See whether images, fonts or embedded files are taking space, then check size limits, metadata, personal data, page order, blanks and redaction risks — locally.
Your file never leaves this tab. No upload, no account, no signup, no email, no watermark — download the result the moment it's ready.
Verify it in 30 seconds- Checks
- Size · metadata · PIIpage order, blank pages
- Portal limits
- CEAC 2 MB · IRCC 4 MBGmail 25 MB, Outlook.com 25 MB
- Account
- Not neededno signup · no email
- Upload
- Noneruns in this tab
Drop the PDF you are about to send
The full inspection runs locally in this browser tab — the file is never uploaded
More ways to work
Choose another PDF task
Related tools from the BytesPDF directory.
Files are not transferred between tools. Select the document again on the next page; it is processed locally in your browser.
Honest limits
What Check Before Sending Does — and What It Refuses
The documents this tool will not touch, and the ten-second checks to run before you send the result.
Works on
What this tool handles reliably.
- Tells you which published limit your file breaks and by how much.
- Flags document metadata and personal-data patterns in the text layer.
- Catches problems before sending: page order, missing pages, blank pages, boxes over text.
Refuses on purpose
Not bugs — decisions we made and will state.
- To change the file. It is a pre-send checklist — nothing is edited.
- To prove a portal will accept your document; only the portal can do that.
- To inspect text that is not in the text layer, such as content inside a scan image.
Check afterwards
The ten seconds we ask you to spend.
- Re-run the check after you compress, because the size verdict will have changed.
- Read the portal's own rules for anything the size check cannot see.
- Treat a box-over-text flag as a reason to look at the page, not as proof of a problem.
Written for Check Before Sending specifically. If your file is on the refuses list, the page you need is the tool that handles it — not this one with the limits removed.
Step by step
How to Check a PDF Before Sending in 3 Easy Steps
Browser-local document processing with no application installation required.
Drop the File, Pick the Destination
Choose where the PDF is going (visa portal, email, bank) so the size check uses that limit.
Run the Pre-Send Check
Eight checks run locally, including a stored-byte audit for images, fonts and attachments plus a text scan for personal data.
Review, Fix, Send
Green means verified, amber means check it yourself, red blocks the send — with a one-click fix for each.
Capabilities
Why Use Our Check a PDF Before Sending Tool?
Current capabilities and limitations, described without universal quality or speed promises.
One Checklist, Eight Checks
Readability, size drivers, portal limits, metadata, personal data, page numbering, blank pages and black-box redaction risks — in one pass.
Catches Expensive Mistakes
The mistakes that matter: a leaked phone number, a black box drawn over live text, a missing statement page, a 2.3 MB file for a 2 MB portal.
Tells You How to Fix It
Every finding links to the exact BytesPDF tool that fixes it — compress to target, remove metadata, redact properly.
Inspected Locally
The file is read in this browser tab only. Inspecting a sensitive document never means uploading it.
FAQ
Frequently Asked Questions
Get clear answers about data flow, formatting, integrity, and usage limits.
What should I check in a PDF before sending it?
How can I tell what is taking up space inside a PDF?
Can this tool see text hidden behind black boxes?
Does the check detect missing pages?
Is my document uploaded anywhere?
What are the size limits it checks against?
Is a 'pass' result a guarantee the document is safe to send?
Side by side
How BytesPDF Compares to Other Check Before Sending Tools
Most online PDF services process documents on remote servers. Here is how BytesPDF compares on data location, usage limits, and workflow fit.
Server-based PDF tools
When to choose them: The job needs heavy OCR, large batches, collaboration, storage, or files bigger than a browser can hold.
When to choose BytesPDF: The operation you need runs locally, and keeping the document off a server matters.
Where your file goes
Others: Uploaded to remote cloud servers, processed there, and held during their retention window.
BytesPDF: Read and rewritten in this browser tab. 0 bytes are ever sent to BytesPDF servers.
Usage limits & quotas
Others: Daily task caps (Smallpdf: 2 tasks/day), processing queues, or subscription paywalls.
BytesPDF: No daily task quota, no account and no signup. Published file and device limits apply. Pro gates apply only to specialist workflows such as target-size compression, batch jobs, OCR and signatures.
What limits you
Others: The provider's commercial limits, upload caps, and subscription tiers.
BytesPDF: Your own device memory, published up front: 150 MB desktop, 50 MB mobile.
Platform & setup
Others: Web upload roundtrip or an OS-specific installer (e.g. PDF24 Creator on Windows).
BytesPDF: Runs in any modern browser on Mac, Windows, Linux, Chromebook, iPhone, and Android.
Directory
PDF Tool Directory
Browse free core tools and Pro workflows for compression, merging, OCR, signatures and more. PDF content stays in your browser.
Choose your next PDF task.
Selected PDF content for supported workflows is processed in your browser and is not uploaded to BytesPDF servers.
No account · No signup · No watermark · No PDF upload