ZH

Zain Haidar

Founder & Developer, PDFPixel · Austria

About

Zain Haidar is the founder and developer of PDFPixel. Based in Austria, he builds and maintains every tool on the site himself, from the PDF-to-JPG renderer to the compression engine, and writes the guides that go with them.

PDFPixel started as a personal fix for a recurring annoyance: needing to convert or shrink a file for a form, an application, or an email, and not wanting to install desktop software or hand a document to an unfamiliar upload site to do it. The tools run in the browser and process files on the user’s own device, which is the constraint the whole project was built around rather than an afterthought added later.

Zain works on PDFPixel as an independent developer rather than as part of a larger company. That means slower feature releases than a funded team, but it also means the tools stay focused on the handful of file tasks people actually run into day to day — converting, compressing, resizing, and combining — instead of expanding into a general-purpose document editor.

Articles by Zain Haidar

PDF Guides7 min read2026-04-29

How to Turn PDF Pages Into JPG Images

A practical guide to turning PDF pages into JPG images for forms, sharing, previews, and everyday document tasks.

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Compression7 min read2026-04-30

How to Compress a PDF File for Email

Attachment limits are set by your email provider, not by common sense. Here is what those limits actually are and how to get under them.

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Mobile Guides7 min read2026-05-01

How to Convert JPG to PDF on Mobile

Use your phone browser to turn document photos, receipts, notes, or screenshots into one PDF without installing another app.

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Compression8 min read2026-05-02

How to Reduce PDF File Size for Upload Portals

Government sites, university portals, and job application systems each enforce their own file-size and file-count rules. Here is how to work within them.

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PDF Guides7 min read2026-05-03

Convert PDF to Image Without Software

Export PDF pages as image files directly in your browser — and understand why that is not a lower-quality shortcut compared to desktop software.

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Image Tools8 min read2026-05-04

How to Resize Images for Websites

Camera photos are rarely the right size for a website. Here is how to pick dimensions that load fast and still look sharp.

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File Formats7 min read2026-05-05

PDF vs JPG: Which Format Should You Use?

Neither format is "better" — they solve different problems. Here is the decision rule that actually matters.

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PDF Guides7 min read2026-05-06

How to Choose Free PDF Tools That Are Actually Useful

Most file tasks need one clear action done well, not a bloated editor. Here is how to tell the difference before you upload anything.

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File Formats6 min read2026-05-07

PDF vs PNG: Which Is Better for Documents?

PNG is not a lesser PDF and PDF is not a bulkier PNG — they solve entirely different problems.

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File Formats7 min read2026-05-08

JPG vs PNG vs PDF Explained Simply

One question decides which of these three formats you actually need: what does the recipient have to do with it next?

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PDF Guides7 min read2026-05-12

How to Convert JPG to PDF on Windows

Windows already has a built-in way to make a PDF from images. Here is why it often falls short, and a browser workflow that does not.

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Compression11 min read2026-05-15

Why Is My PDF File So Big — and How to Fix It

A one-page PDF should not weigh 40 MB. Here is what actually causes bloated PDFs, how small is realistic, and what to do when compression is not the real problem.

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PDF Guides7 min read2026-05-18

How to Extract Images from a PDF File

Most people searching for "extract images from PDF" actually need something much simpler: the page itself, as an image.

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Mobile Guides10 min read2026-05-09

How to Convert a PDF to JPG (Any Device)

The conversion itself never changes. What changes from iPhone to Android to desktop is only where your file picker looks and where the download lands.

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