Government and college portals in India routinely reject files over 1–5 MB. WhatsApp document caps are similarly unforgiving. Compress PDF is not optional — it is the difference between “submitted” and “upload failed”.
Online compressors (Smallpdf, iLovePDF) re-encode on their servers. Pdf Buddy compresses on your PC so a passport scan never sits in a foreign queue.
What compression actually does
- Re-encodes embedded images (the usual bulk of a phone-scan PDF).
- May downsample DPI — good enough for portals, not for print posters.
- Does not magically shrink a PDF that is already only vector text.
A practical recipe
- Rotate and crop junk margins if your editor supports it.
- Compress, then open the result and check that GSTIN / signatures are still readable.
- If still too big, split to the pages the portal actually wants.
Pair with the merge/split/compress guide.
At a glance
- Reduce PDF size for portals and attachments
- Keep text readable after compression
- Batch-friendly desktop workflow
Related tools
- Edit PDF text & pages
- Merge PDF files
- Split PDF pages
- Sign PDF documents
- OCR scanned PDFs
- Unlock & protect PDF
- Convert images & Office to PDF
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