Free PDF Compression Guides

Step-by-step tutorials for every situation — portal uploads, email, mobile, large files, and more. All free, no login.

🗜️ Compress a PDF Now

These guides were written for real situations: a government portal rejecting your upload, a job application with a 2MB limit, a WhatsApp group that won't send a 15MB scan. Each one is specific to a scenario, device, or platform — not generic advice repackaged under a different heading. 95 guides across English, Bahasa Malaysia, Bahasa Indonesia, and Simplified Chinese, and we continue adding more as new use cases come up.

Getting Started

New to PDF compression? Start here. These guides explain how compression works, why PDFs get large in the first place, and which tool or setting to use for your situation — before you dive into a specific use case or device.

How to Compress a PDF — Complete Guide

Target any size — under 1MB, 2MB, or for email. Covers compression levels, what affects file size, and what to do when compression isn't enough.

8 min readHow-To

Why Is My PDF So Large?

A 5-page document shouldn't be 30MB. Learn the 5 causes of oversized PDFs — high-res images, uncompressed data, embedded fonts, metadata, and layers — and how to fix each.

7 min readInformational

Best Free PDF Compressor with No File Size Limit

Most free tools cap at 10–50MB. This guide explains which tools genuinely have no limit, why, and what trade-offs to expect.

6 min readComparison

By Use Case

Most people compress a PDF because a specific system is rejecting their upload. These guides are written for exactly that — government portals, university applications, email attachments, job submissions, and more. Each one covers the size limit for that platform and walks through the compression steps.

Compress PDF for Malaysian Government Portals

LHDN, EPF, JPA, UPU, SPA — portal-specific size limits, scanning tips, and step-by-step compression for each. No server upload.

7 min readMalaysia

Cara Kecilkan Saiz PDF Percuma

Panduan lengkap cara kecilkan saiz fail PDF secara percuma — tanpa app, tanpa had saiz, fail diproses dalam browser anda.

5 min readBahasa Malaysia

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Kecilkan PDF untuk e-Filing LHDN

PDF ditolak oleh sistem ezHASiL sebab terlalu besar? Panduan kecilkan EA Form, resit, dan penyata bank ke bawah 2MB.

6 min readBahasa Malaysia

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PDF Terlalu Besar untuk Upload MyEG

PDF ditolak semasa muat naik ke MyEG atau JPJ untuk cukai jalan dan lesen? Panduan kecilkan dokumen ke saiz yang diterima.

5 min readBahasa Malaysia

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Cara Tambah Watermark Pada PDF

Tambah watermark teks seperti SULIT atau DRAF pada setiap muka surat PDF terus dalam browser — tiada log masuk, tiada perisian.

4 min readBahasa Malaysia

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Cara Tukar PDF ke Word Percuma

ShrinkPDF tiada fungsi tukar PDF ke Word — ini sebabnya, plus cara percuma yang benar-benar berkesan ikut jenis dokumen anda.

6 min readBahasa Malaysia

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Cara Putar (Rotate) PDF Percuma

Putar halaman PDF yang terbalik atau senget 90°, 180°, atau 270° terus dalam browser. Percuma, tiada install.

3 min readBahasa Malaysia

Baca panduan →

Cara Gabung PDF Percuma

Gabungkan beberapa fail PDF jadi satu dokumen, percuma dan terus dalam browser. Sesuai untuk permohonan kerja, pinjaman bank, atau borang kerajaan.

4 min readBahasa Malaysia

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Cara Kompres PDF Gratis

Panduan lengkap cara memperkecil ukuran file PDF secara gratis, tanpa batas ukuran, tanpa login, file diproses di browser kamu.

5 min readBahasa Indonesia

Baca panduan →

Kompres PDF untuk Pendaftaran Beasiswa LPDP

File PDF ditolak saat upload ke aplikasi LPDP karena terlalu besar? Panduan kompres transkrip, ijazah, dan dokumen pendukung.

6 min readBahasa Indonesia

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Kompres PDF untuk Pendaftaran SNBT/SNBP

File PDF gagal diunggah saat pendaftaran SNBT, SNBP, atau PTN karena terlalu besar? Panduan kompres KK, KTP, dan rapor.

5 min readBahasa Indonesia

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Cara Gabungkan PDF Gratis

Gabungkan beberapa file PDF jadi satu untuk lamaran kerja, berkas beasiswa, atau pengajuan pinjaman — gratis, tanpa upload ke server.

4 min readBahasa Indonesia

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Cara Pisahkan PDF Gratis

Ambil satu halaman atau pisahkan semua halaman PDF jadi file terpisah — gratis, tanpa upload ke server.

4 min readBahasa Indonesia

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Cara Ubah JPG ke PDF dan PDF ke JPG

Ubah foto atau hasil scan HP jadi PDF, atau sebaliknya — gratis, cocok untuk dokumen pendaftaran.

4 min readBahasa Indonesia

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Cara Menambahkan Watermark ke PDF

Tambahkan watermark teks seperti RAHASIA atau DRAFT ke setiap halaman PDF langsung di browser — tanpa login, tanpa install software.

4 min readBahasa Indonesia

Baca panduan →

Nomor Halaman PDF

Tambahkan nomor halaman ke setiap halaman PDF langsung di browser — atur posisi, format, dan mulai dari angka berapa pun. Gratis, tanpa login.

4 min readBahasa Indonesia

Baca panduan →

Cara Ubah PDF ke Word Gratis

ShrinkPDF tidak punya fitur convert PDF ke Word — ini penjelasannya, plus cara gratis yang benar-benar berfungsi tergantung jenis dokumen kamu.

6 min readBahasa Indonesia

Baca panduan →

Cara Putar (Rotate) PDF Gratis

Putar halaman PDF yang terbalik atau miring 90°, 180°, atau 270° langsung di browser. Gratis, tanpa install.

3 min readBahasa Indonesia

Baca panduan →

Cara Ubah PDF ke Excel Gratis

Excel punya fitur bawaan untuk tarik tabel dari PDF — ini cara pakainya, kapan berhasil, dan kapan kamu butuh tools OCR khusus.

5 min readBahasa Indonesia

Baca panduan →

Compress PDF for University Submission

UPU, UTAC, public and private university portals — limits by document type, tips for transcripts and certificates, and a last-minute deadline checklist.

7 min readMalaysia

Compress PDF for Email (Gmail & Outlook)

Email size limits by provider, which compression level to use, and what to do when the file is still too large for email attachments.

Part of Complete Guide

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Compress PDF for Job Applications

Ideal file sizes for LinkedIn, Jobstreet, Workday, and government portals — plus how to compress a resume without making it look blurry.

7 min readResume

Compress PDF to Send on WhatsApp or Telegram

Why large PDFs fail or lag on both apps, how to compress on your phone in under 2 minutes, and how to send without it converting to an image.

6 min readWhatsAppTelegram

Compress PDF for Google Drive & Classroom

Save Drive storage, speed up sharing, and submit assignments on Google Classroom without hitting upload limits.

6 min readGoogleStudents

Compress Scanned IC or Passport PDF (Malaysia)

Upload limits for LHDN, KWSP, EPF, JPA, and bank portals — plus how to compress identity document scans privately without uploading to any server.

6 min readMalaysiaIdentity

Compress PDF for Insurance Claims

Upload limits by claim type, which level to use for medical bills vs IC copies, and how to merge multiple claim documents into one PDF.

6 min readInsurance

Compress PDF for Bank Account Opening (Malaysia)

Upload limits for Maybank, CIMB, Public Bank, RHB, BSN, and more — plus how to compress payslips and IC scans safely before submission.

6 min readMalaysiaBanking

How to Send a Large PDF by Email

Attachment limits for Gmail, Outlook, Yahoo, and corporate email — plus when to compress, when to share a Drive link, and when to split into parts.

6 min readEmail

Compress PDF for Tax Filing

Which compression level for payslips, bank statements, and receipts — why Balanced is essential for financial documents, and how to organise multiple receipts before submitting.

Compress PDF for Visa Application

Upload limits for VFS Global, TLS Contact, and embassy portals — which level for passport scans vs bank statements, and why to never use Maximum on a passport photo page.

7 min readVisaTravel

Compress PDF for Forms, Applications & Submissions

Which level to use for HR onboarding paperwork, scholarship applications, and rental agreements — plus what to know before compressing anything that's signed.

7 min readFormsApplications

New Guides

Recently added guides covering common compression scenarios, specific document types, and Malaysian use cases not covered in the core guide library.

Canva PDF Too Large to Upload?

Why Canva PDFs are always large (every page is a full-res image), and three ways to get under any portal size limit.

5 min readDesign Files

PDF Size Limits by Platform — Complete Reference

Every major platform's PDF upload limit in one place: Gmail, WhatsApp, LHDN, UPU, LinkedIn, JobStreet, and more.

6 min readReference

Compress PDF for Email Attachments

Gmail caps at 25MB, Outlook at 20MB, corporate servers often at 10MB. Which compression level to use and when.

4 min readEmail

MyEG PDF Upload — Size Limit & How to Compress

MyEG limits documents to 2–5MB. How to compress IC scans, passport copies, and permit documents for MyEG portal uploads.

4 min readMalaysia

Compress PDF on Samsung Phone

Step-by-step for Samsung Galaxy using Chrome or Samsung Internet. No app download required. Works on all One UI devices.

4 min readSamsung

Compress PDF Resume Without Losing Quality

Different compression levels for Canva resumes, Word exports, and scanned CVs. Includes ATS warning and quality check steps.

5 min readJob Applications

Compress Image-Heavy PDFs: Scans & Design Files

Why PDFs with photos and scans compress dramatically more than text PDFs — and exact settings for each type.

5 min readImage PDFs

Compress a Tenancy Agreement PDF

Wet-ink signatures compress fine; digital certificate signatures don't. How to tell the difference and compress safely.

5 min readLegal Documents

Compress Medical Report PDF for SOCSO & Insurance

How to compress safely for SOCSO, insurance, and hospital submissions without losing diagnostic detail.

4 min readMedical

Password-Protected PDF Won't Compress?

Why encryption blocks compression tools, and how to remove the password safely on Mac and Windows before compressing.

4 min readTroubleshooting

Compress PDF to Under 100KB — Is It Possible?

What's realistically achievable by document type, and what to do when 100KB genuinely isn't possible with compression alone.

4 min readSize Targets

What Does a Compressed PDF Look Like?

Honest quality guide: what each compression level does to text, scans, and design files. Why screen viewing hides the difference.

5 min readQuality Guide

Compress SPM Result Slip for UPU & Scholarship

SPM and STPM result slips for UPU, JPA, and MARA portals. The right compression level to keep grades legible within 2MB.

4 min readMalaysia

Prepare Documents for UPU Rayuan (Appeal)

The rayuan window is only about 10 days. What documents are usually needed, and the right order to compress and merge them.

4 min readMalaysia

Combine Multiple PDFs and Compress Into One

Compress each file first, then merge — not the other way around. Step-by-step workflow for submission-ready combined PDFs.

4 min readWorkflow

Prepare PDF for Printing Shop or Kedai Photostat

Print shops need different file handling than portals. When to compress, when not to, and how to send files via WhatsApp correctly.

4 min readPrint Shop

简体中文指南

针对马来西亚华人用户的简体中文 PDF 指南，覆盖手机操作、政府门户上传、大学申请和银行文件等常见场景。

如何免费压缩PDF文件

三步压缩 PDF，支持任意大小，无需上传。含常见文件压缩效果对照表和马来西亚常见上传限制说明。

4 min read中文

阅读指南 →

手机压缩PDF — Android和iPhone教程

无需安装任何 App，用手机浏览器直接压缩 PDF。分别介绍 Android（Chrome）和 iPhone（Safari）的操作步骤。

4 min read中文

阅读指南 →

LHDN报税上传PDF — 压缩到2MB以内

LHDN e-Filing 每份文件限制 2MB。教你压缩薪资单、月结单和收据，文件不离开设备。

4 min read中文

阅读指南 →

大学申请上传PDF — UPU和奖学金门户

UPU、马来西亚公立大学和 JPA 奖学金门户的文件上传限制和压缩建议，附各类申请文件的处理方法。

5 min read中文

阅读指南 →

WhatsApp发送PDF — 正确方式和压缩技巧

WhatsApp 发送 PDF 的正确操作：用"文件"而不是"图库"发送，保持 PDF 格式完整。含 Android 和 iPhone 步骤。

3 min read中文

阅读指南 →

银行月结单PDF压缩 — 开户和贷款申请

马来西亚各银行的文件上传限制和压缩建议，含薪资单、月结单和 IC 扫描件的处理方法。

4 min read中文

阅读指南 →

如何给PDF添加水印

在浏览器里给PDF每一页加上文字水印，无需登录、无需下载软件，教你怎么选位置、颜色和透明度。

4 min read中文

阅读指南 →

如何给PDF添加页码

在浏览器里给PDF每一页加上页码，自由选择位置、格式和起始数字，无需登录、无需下载软件。

4 min read中文

阅读指南 →

By File Type

Different documents compress differently. A scanned IC compresses more than a Word export. A Canva-designed resume compresses more than a spreadsheet. These guides cover the specific compression behaviour and recommended settings for each document type, plus the other tools — merge, split, convert — that are often needed alongside compression.

How to Compress Large PDF Files (100MB+)

Realistic compression results for 50MB, 100MB, and 200MB files, expected processing times by device, and what to do when the result is still too large.

6 min readLarge Files

How to Add a Watermark to a PDF

Stamp CONFIDENTIAL, DRAFT or your own text on every page — no login, no software. Choosing position, opacity and colour so it labels without obscuring.

4 min readWatermark

How to Add Page Numbers to a PDF

Number every page — choose position, format and starting number. Free, in your browser, no file size limit.

4 min readPage Numbers

By Device

ShrinkPDF works on any device with a modern browser — no app download, no software install. These step-by-step guides cover the specific workflow for each device: where to find your file, how to download the result, and how to share or upload it. Instructions are tested on the actual device and operating system.

Compress PDF on Windows 10 and 11

5 methods — browser-based (fastest), Microsoft Edge Print to PDF, Word export settings, and Windows Print to PDF. Includes why right-click "Compress" doesn't work.

7 min readWindows

Compress PDF on Mac

Preview, ColorSync Utility, Automator, and browser-based tools — plus why Preview's "Reduce File Size" often makes PDFs larger instead of smaller.

Compress PDF on iPhone and Android

No app needed. Full step-by-step for Safari on iPhone and Chrome on Android — including how to find your file, download the result, and share or upload it.

6 min readMobile

Compress PDF on a Chromebook

No extensions, no Linux, no app installs needed. Works entirely in Chrome — upload, compress, and download in under 2 minutes on any Chromebook.

5 min readChromebook

Compress PDF on iPhone Using the Files App

Step-by-step guide for iPhone — no App Store download needed. Uses Safari and saves directly to your Files app. Works on iOS 15 and later.

6 min readiPhoneiOS

Compress PDF on Android Without Installing Any App

Use Chrome on any Android phone — Samsung, Xiaomi, OPPO, Vivo, Realme. No Play Store download. Compressed file saves to Downloads automatically.

5 min readAndroid

How to Compress a PDF on iPad

Use Safari on any iPad — no App Store needed. Includes Split View workflow, iCloud Drive tips, and how to share the compressed file via email or AirDrop.

6 min readiPadiPadOS

Compress PDF on Linux — No Install Needed

Works in Firefox, Chrome, and Chromium on Ubuntu, Fedora, Debian, Arch, and all major distros. Also covers the Ghostscript terminal method for power users.

5 min readLinux

Compress PDF in Chrome, Edge, or Firefox

No extension needed in any of the three. The same 3-step process works in all of them, plus browser-specific tips and a privacy walkthrough for Firefox users.

5 min readChromeEdgeFirefox

Quality & Office Apps

Compress PDF Without Losing Quality

What ShrinkPDF's compression actually does to your file, which level to use for your document type, and when to think twice before compressing anything signed or link-heavy.

8 min readQuality

Compress PDF from Word and PowerPoint

Why Office exports are 5–20× larger than necessary, the exact export settings to use in Word, PowerPoint, and Excel, and what to do when you only have the PDF.

7 min readWordPowerPoint

PDF Compression Explained — DPI, File Size & Quality

What DPI means, why high-DPI images make files large, and a practical table showing how compression affects different document types.

8 min readDeep Dive

Compress PDF for Printing — What DPI You Actually Need

When compression is safe before printing and when it isn't. DPI requirements for home, office, and professional printing explained clearly.

7 min readPrintingDPI

Compress PDF on a Huawei Phone (2026)

Compress PDFs on Huawei phones with EMUI or HarmonyOS — no Google Play required. Works in Huawei Browser without any app installation.

7 min readHuaweiMobile

Comparisons

Smallpdf vs ILovePDF vs ShrinkPDF (2026)

Honest comparison with real compression data, pricing, privacy trade-offs, and a clear recommendation by use case. Not a promotional piece.

8 min readComparison

Adobe Acrobat vs Free PDF Tools — Do You Need to Pay?

Feature comparison, honest compression quality results, and a clear breakdown of when Acrobat is worth the subscription vs when free tools are identical.

8 min readComparison

PDF to Word & Word to PDF — Best Free Ways to Convert

Why ShrinkPDF doesn't convert PDF to Word, plus the free and low-cost tools that actually do it well depending on your document type.

6 min readComparison

PDF to Excel & PowerPoint — What Actually Works

Excel has a real built-in PDF import feature. PowerPoint doesn't. A realistic look at what each can do for free, and when you need a dedicated tool.

6 min readComparison

How to Sign a PDF for Free — What Counts as Legal

Drawing on a PDF and a legally binding e-signature aren't the same thing. Free options for both, and which one you actually need.

5 min readComparison

How to Edit a PDF for Free — What Editing Means

Adding text on top of a PDF and editing text that's already there are different problems. Free options for both, and what to expect.

5 min readComparison

Best Free PDF Tools in 2026

A roundup of the best free tools for compressing, merging, splitting, editing, converting, and signing PDFs — with honest notes on privacy and limitations.

9 min readRoundup

Compress PDF Without Adobe Acrobat — Free Alternatives (2026)

You don't need a USD 20/month subscription to compress a PDF. These free alternatives match Acrobat's quality — compared honestly by platform, privacy, and ease of use.

9 min readAdobeFree Alternative

Privacy & Advanced

Compress PDF Without Uploading to Any Server (2026)

How browser-based local compression works, why it matters for sensitive documents, and how to verify no upload occurs using your browser's Network tab.

9 min readPrivacyNo Upload

Compress PDF Free Without a Watermark (2026)

Why most free PDF tools add watermarks — and which ones don't. How to verify your compressed output has no added watermarks or hidden modifications.

7 min readFreeNo Watermark

Compress Multiple PDFs at Once — Batch Compression (2026)

Options for compressing 10, 20, or 50 PDFs in bulk — browser tool, ILovePDF batch, PDF24 desktop app, and Ghostscript command line compared.

8 min readBatchAdvanced

Compress PDF for LinkedIn and Job Applications (2026)

File size limits for LinkedIn, Workday, Greenhouse, and JobStreet. The right compression level for CVs vs portfolios — and what to check before submitting.

8 min readLinkedInJob Application

Troubleshooting

PDF Won't Compress — Why It Happens and How to Fix It

Your PDF comes out the same size after compression? Six proven fixes — including re-scanning, Ghostscript, and re-exporting from source.

9 min readTroubleshooting

PDF Too Large to Upload — 7 Fixes That Actually Work

Getting a 'file too large' error? Seven methods ranked by effectiveness — compression, re-scanning, splitting, re-exporting, and cloud links.

8 min readUploadTroubleshooting

How to Reduce a PDF to 50KB, 100KB, or 300KB — Free

Need to hit a very specific file size target? What's actually achievable at each target, and the exact steps to get there.

8 min readFile SizeHow-To

Why Is My Scanned PDF So Large? Causes and Fixes

Scanned PDFs are 5–20MB even for a few pages. Why it happens, which scanner apps produce smaller files, and how to fix it without re-scanning.

8 min readScanned PDFTroubleshooting

PDF Size Not Reduced After Compression — Why and What to Do

Compressed your PDF but it barely changed size? The four specific reasons this happens and the right alternative approach for each situation.

8 min readTroubleshootingCompression

Other Tools — Merge, Split & Convert

How to Merge PDF Files Into One

Combine multiple PDFs into one file with no email, no account, no file limit. How merging works, whether it affects quality, and how to reorder pages before finalizing.

5 min readMergeFree

How to Split a PDF Into Separate Files

Extract one page, a specific range, or every page into its own file. How splitting differs from compressing, and when you need both.

5 min readSplitExtract Pages

Convert PDF to JPG or PNG — and Back

Turn PDF pages into images, or combine photos and screenshots into a single PDF. JPG vs PNG, what DPI means for your result, and how each direction works.

6 min readPDF to JPGJPG to PDF

How to Reorder PDF Pages — Drag and Drop

Rearrange, organize, or move pages in a PDF by dragging thumbnails. How reordering affects quality, and how to delete unwanted pages in the same step.

4 min readReorderFree