Docexp Blog
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How to Merge PDF Files Without Uploading Them Anywhere
Most "free PDF merger" sites send your documents to their servers first. Here's how to combine PDFs entirely on your own device — and how to verify for yourself that nothing was uploaded.
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Passport Photo Sizes by Country — and How to Make One at Home Free
The exact passport and visa photo dimensions for the US, UK, India, Canada, Australia, and Schengen countries, plus how to crop, resize, and shrink one to the required KB size without paying anyone.
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How to Compress a PDF to 100 KB (or Any Exact Size)
Most PDF compressors give you vague "low/medium/high" presets. Here's how to hit an exact file size limit like 100 KB or 300 KB — free, in your browser, without uploading anything.