# Optimization & File Size

**URL:** https://standardspdf.com/forum/c/optimization-file-size/15.md

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## [About the Optimization & File Size category](https://standardspdf.com/forum/t/about-the-optimization-file-size-category/17)

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**Author:** [@system](https://standardspdf.com/forum/u/system)\
**Replies:** 0\
**Last updated:** [October 28, 2026, 2:21pm UTC](https://standardspdf.com/forum/t/about-the-optimization-file-size-category/17 "2026-10-28T14:21:53Z")

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Shrinking heavy PDFs for email and portals.

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## [Is there a PDF compressor to 10kb for my visa upload?](https://standardspdf.com/forum/t/is-there-a-pdf-compressor-to-10kb-for-my-visa-upload/103)

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**Author:** [@distracted\_kiddo](https://standardspdf.com/forum/u/distracted_kiddo)\
**Replies:** 7\
**Last updated:** [November 9, 2026, 5:31am UTC](https://standardspdf.com/forum/t/is-there-a-pdf-compressor-to-10kb-for-my-visa-upload/103 "2026-11-09T05:31:53Z")

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My visa application portal says the PDF upload has to be under 10 KB, but my scanned document is around 500 KB. Can I compress it that much and still keep everything readable?

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## [Does anyone know a 100 kb PDF compressor that actually works?](https://standardspdf.com/forum/t/does-anyone-know-a-100-kb-pdf-compressor-that-actually-works/70)

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**Author:** [@CynthiaMorgan](https://standardspdf.com/forum/u/CynthiaMorgan)\
**Replies:** 12\
**Last updated:** [November 9, 2026, 12:01am UTC](https://standardspdf.com/forum/t/does-anyone-know-a-100-kb-pdf-compressor-that-actually-works/70 "2026-11-09T00:01:51Z")

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I need to get a PDF down to under 100 KB for an online application form, and everything I’ve tried either barely shrinks it or makes the text unreadable. The file is a 6-page scan, so does anyone know a tool that actuall…

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## [I'm stuck on how to increase the size of pdf?](https://standardspdf.com/forum/t/im-stuck-on-how-to-increase-the-size-of-pdf/56)

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**Author:** [@LucasHamilton](https://standardspdf.com/forum/u/LucasHamilton)\
**Replies:** 13\
**Last updated:** [November 6, 2026, 11:46am UTC](https://standardspdf.com/forum/t/im-stuck-on-how-to-increase-the-size-of-pdf/56 "2026-11-06T11:46:49Z")

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I’m trying to make the pages in a PDF larger so the text is easier to read when printed, but I’m not sure which setting controls that. How can I do it without changing the content?

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## [How can I check my pdf document size before uploading it?](https://standardspdf.com/forum/t/how-can-i-check-my-pdf-document-size-before-uploading-it/43)

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**Author:** [@Susan\_2010](https://standardspdf.com/forum/u/Susan_2010)\
**Replies:** 14\
**Last updated:** [November 1, 2026, 1:47pm UTC](https://standardspdf.com/forum/t/how-can-i-check-my-pdf-document-size-before-uploading-it/43 "2026-11-01T13:47:41Z")

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The submission portal has a strict 5 MB limit, but I cannot figure out how to see the exact size of my PDF on my phone before uploading. Where do I find that information?