How to Convert Between Image Formats (JPG, PNG, WEBP, PDF)

Updated March 2026 · 5 min read

"Please upload in JPEG format." You've got a PNG. Or the portal says "PDF only" and all you have is a photograph. Or maybe you want to convert a WEBP image you saved from the web into a normal JPEG.

Whatever the situation, FormFocus can convert between JPEG, PNG, WEBP, and PDF — entirely in your browser. No uploads, no watermarks, no sign-up walls.

Supported Conversions

The Format Converter handles these inputs and outputs:

Quick Format Comparison

Not sure which format you need? Here's a cheat sheet:

Format Best For Transparency? File Size
JPEG Photographs, forms, most uploads No Small
PNG Screenshots, graphics, transparent backgrounds Yes Medium–Large
WEBP Web images (smaller than JPEG at same quality) Yes Very Small
PDF Documents, printable forms, multi-page submissions N/A Varies

Step-by-Step Guide

Step 1: Go to Format Converter

Open FormFocus and click "Format Converter" in the navigation bar.

Step 2: Upload Your File

Click "Upload Image or PDF" and select your file. A preview will appear showing what you've loaded. For PDFs, you'll see thumbnail previews of pages (up to 25 pages are supported).

Step 3: Pick Your Output Format

You'll see four buttons: JPEG, PNG, WEBP, and PDF. Click the one you want to convert to. The button for the current format will be disabled (you can't convert JPEG to JPEG — that wouldn't make sense).

Step 4: Adjust Quality (Optional)

The Quality slider (60%–100%) controls the output file size and visual quality. For most purposes, 90% is the sweet spot — you get a much smaller file with virtually no visible quality loss. Drop it to 70–80% if you need an even smaller file.

Note: Quality only applies to JPEG and WEBP. PNG is lossless (always full quality), and PDF quality depends on the embedded image quality.

Step 5: Download

The converted file downloads automatically. If you converted a multi-page PDF to images, you'll get a choice: download as a ZIP (all images bundled) or download individually.

💡 When to Use Which Format:

Converting PDFs to Images

This is one of the most useful conversions. If you have a scanned marksheet or certificate in PDF format and a form asks for "JPEG image," just upload the PDF and click JPEG. Each page becomes a separate image.

For multi-page PDFs, only the first 25 pages are processed to prevent your browser from running out of memory.

FAQ

Will converting from JPEG to PNG improve quality?

No. Converting between formats doesn't add information that wasn't there. If the JPEG was compressed at 70% quality, converting it to PNG just saves the same pixels without further loss — but it won't magically "un-compress" and restore detail.

Can I batch-convert multiple images at once?

Currently, the converter handles one file at a time. For batch PDF-to-image conversions, all pages of a multi-page PDF are converted in one go though.

Is HEIC supported?

HEIC (the format iPhones use) is accepted as input. Browser support for HEIC varies — it works well in Safari and recent versions of Chrome. If your browser doesn't support it, try a different browser.

Need to convert a file? Open Format Converter →