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Gmail users use OnlineTools4Free to compress PDF attachments, resize images for emails, and keep messages under the 25MB attachment limit.
A step-by-step workflow tailored for Gmail users. No installations, no accounts — just open the tool and go.
Gmail has a 25MB attachment limit. Use our PDF Compressor to shrink large documents before attaching them. Most PDFs can be reduced by 40-70% without losing readability.
Use the Image Resizer to reduce image dimensions before attaching to emails. A 1200px wide image is more than enough for email viewing and keeps file sizes manageable.
When inserting images inline in Gmail (not as attachments), compress them first. Smaller images load faster for recipients and are less likely to be clipped by Gmail message size limits.
Instead of attaching five separate PDFs, use our Merge PDF tool to combine them into a single file. This is cleaner for recipients and easier to manage.
Create a QR code linking to your website, LinkedIn, or vCard using our QR Code Generator. Download it as a small PNG to include in your Gmail signature.
These tools are the most useful for Gmail users. All free, all browser-based.
No account, no plugins, no setup. Open the tool, process your file, use the result in Gmail.
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