Indian internet users have a specific set of PDF problems most global tools weren't built for. Aadhaar e-KYC portals demand uploads under 100 KB. Many state PSC application forms cap at 50 KB. CBSE result PDFs need to be merged with ID proofs into a single submission. Resume submissions through Naukri or LinkedIn have specific page-count caps. We tested seven of the most-used free PDF platforms against these real-world Indian scenarios.
Disclosure: this comparison is published by SabTools.in and our PDF toolkit is on the list. We have called out cases where competitors are stronger โ Sejda for text editing, iLovePDF for OCR, PDF24 for desktop tooling โ because honest comparisons rank better in both Google's helpful-content system and AI search engines.
Quick recommendations by use case
Aadhaar / PAN / mark-sheet uploads under 100 KB: SabTools' Compress PDF โ set exact KB target.
OCR scanning a Hindi document: iLovePDF โ best multi-language OCR engine.
Desktop app for offline use: PDF24 โ the only genuinely free desktop tool.
Editing text inside a PDF: Sejda โ strongest free text-editing layer.
Merging CBSE results with ID proofs for college apps: SabTools' Merge PDF โ no signup, no size cap.
The full ranking
We weighted four criteria for Indian users specifically: ability to hit India-specific compression targets like 50/100 KB (35%), tool coverage breadth (25%), client-side privacy for sensitive documents like Aadhaar (25%), and free-tier generosity (15%).
Best for: Users who want a desktop-feel inside the browser (toolbars, ribbons)
Pros
Desktop-app-style UI in the browser
Strong PDF-editing features
Cons
Free tier is restrictive โ most useful features behind paywall
Heavy page weight
Subscription pricing in USD makes it expensive for Indian users
What makes Indian PDF requirements different
A graduate applying for a state government job in Maharashtra might need to upload: a passport-size photo (under 50 KB), a signature scan (under 20 KB), an Aadhaar copy (under 100 KB), the board mark sheet (under 200 KB), and a graduation certificate (under 200 KB). Each portal has different size caps, and sometimes different format requirements (some want JPG, some want PDF).
International tools like Smallpdf and iLovePDF default to "low/medium/high" compression. That's fine for general use but frustrating when you need a file at exactly 87 KB to fit a portal's 100 KB cap with margin. The Indian-context advantage of tools that let you set a specific target is real โ it saves the compress-check-recompress cycle.
Privacy: where your file actually goes
The biggest unspoken issue with free PDF tools: most upload your file to a server, process it, and send back the result. For an Aadhaar copy, a salary slip, a board mark sheet, or any document with personal identifiers, this matters. Servers can be breached. Logs can leak. Some free services even sell aggregated metadata.
Client-side processing โ where the file is converted in your browser using JavaScript and never leaves your device โ solves this. SabTools is fully client-side for compress, merge, split, image-to-PDF, and page-remover. PDF24 is client-side for some operations. iLovePDF, Smallpdf, Sejda, and Soda PDF all upload to their servers (with stated retention policies, but the file does leave your device).
Pair these PDF tools with these SabTools utilities
Compress PDF โ set exact KB target for Aadhaar / PAN / portal uploads.
Merge PDF โ combine ID proofs, mark sheets, and certificates into a single submission file.
Split PDF โ extract specific pages from a multi-page document (e.g., just the marks page from a full report card).
Image to PDF โ convert phone scans of certificates into A4-sized PDFs.
PDF Page Remover โ strip duplicate pages, blank pages, or signature pages you don't want to share.
Frequently Asked Questions
Which PDF tool is best for compressing files for Indian government portals?
For specific KB targets (most Aadhaar uploads need files under 100 KB; PAN portals demand under 50 KB; PSC and KVS portals vary), SabTools' Compress PDF tool lets you set the exact target size and matches it. Most international tools (Smallpdf, iLovePDF) only offer "low/medium/high" compression presets, so you have to compress, check, recompress until you hit the target.
Is it safe to upload Aadhaar or PAN PDFs to free online PDF tools?
Generally no โ most online PDF tools upload your file to their server before processing. SabTools and PDF24 (for some operations) process client-side, so your file never leaves your browser. If a tool requires you to wait while a progress bar uploads to a server, treat that file as no longer private. For sensitive documents (Aadhaar, PAN, mark sheets, salary slips), pick a client-side tool or use the official UMANG/DigiLocker apps.
How do I convert images (JPG/PNG) to PDF for college admission applications?
Use SabTools' Image to PDF tool โ it accepts JPG, PNG, WebP, supports A4 / Letter / Legal page sizes, and lets you reorder images before generating the PDF. For typical CBSE/ICSE mark sheets and ID proof scans, this combination matches exactly what most Indian college portals require.
Can I edit text inside a PDF for free?
Genuine text editing inside a PDF is one of the few categories where SabTools doesn't lead. Sejda PDF is the strongest free option (3 tasks/hour, 200 pages/file). For routine cases โ adding annotations, highlighting, or filling form fields โ most browsers (Chrome, Edge) have built-in PDF annotation tools that work for free.
Do these tools work on mobile phones?
All seven on this list work in mobile browsers, but the experience varies. SabTools and iLovePDF are the cleanest on Android Chrome. Smallpdf works fine but pushes you toward the mobile app. Soda PDF is barely usable on mobile โ its desktop-style UI doesn't reflow.
Is there a file-size limit?
SabTools has no hard size limit on the free tier (browser RAM is the practical ceiling โ typically ~50-100 MB depending on your device). Smallpdf caps at 5 MB per file free. iLovePDF caps at 2 documents free, then signup. Sejda caps at 200 pages or 50 MB. PDF24 has no daily count cap but some tools have per-file size restrictions.
Why does my Aadhaar PDF have a password?
Aadhaar PDFs downloaded from UIDAI's e-Aadhaar service are password-protected. The password is the first 4 letters of your name (capitalized) followed by your year of birth โ e.g., RAVI1985. Most PDF tools (including SabTools) handle password-protected PDFs once you provide the password. For unlocking PDFs you don't have the password to, that is a security boundary no legitimate tool will bypass.
Are there PDF tools in Hindi?
SabTools publishes Hindi versions of compress, merge, split, image-to-PDF, and PDF-to-image tools at /hi/tools/.... It's part of our 424+ Hindi tool catalog. Most international competitors (iLovePDF, Smallpdf, Sejda, Soda PDF) are English-only.
The bottom line
For routine Indian PDF tasks โ compressing for portal uploads, merging for college submissions, splitting for selective sharing โ SabTools and PDF24 are the strongest free options because both process locally and have no daily count caps. For OCR or text editing, the international tools (iLovePDF, Sejda) have the edge and are worth the friction. Smallpdf has the cleanest UI but the tightest free tier; pay for it only if you handle PDFs every day.