Name: Convert ERF to PPM
Brand: XConvert

CONVERT

IMAGE_EXTENSIONS_GROUP_PPM

Conversion Quality

`Higher DPI settings improve image quality but increase processing time. <b>300 DPI</b> is the recommended balance between high-quality output and processing speed for most documents.`

72 DPI (Web / Smallest File)

96 DPI (Standard Screen)

150 DPI (Balanced / Medium)

200 DPI (Office Standard)

300 DPI (High Quality / Print Recommended)

400 DPI (Small Text / OCR)

600 DPI (Ultra High / Archival)

1200 DPI (Maximum Detail / Fine Art)

Image Compression

`<div class="d-flex align-items-center">    <i class="bi bi-exclamation-triangle-fill fs-4 me-3 text-warning"></i>    <div>        <strong>Potential Quality Loss:</strong>         Targeting a <b>File Size (%)</b> while changing formats (e.g., JPG to PNG) can cause extreme pixelation.         <hr class="my-2">        <p class="mb-0 small">            <strong>Pro Tip:</strong> To avoid this, use <b>"Specific file size"</b> or switch to the <a href="/image-compressor" class="alert-link">Image Compressor</a> with output set to <b>"Same as source".</b>        </p>    </div></div>`

`<div class="d-flex align-items-center">    <i class="bi bi-exclamation-triangle-fill fs-4 me-3 text-warning"></i>    <div>        <strong>Potential Quality Loss:</strong>         Targeting a <b>File Size (%)</b> while changing formats (e.g., JPG to PNG) can cause extreme pixelation.         <hr class="my-2">        <p class="mb-0 small">            <strong>Pro Tip:</strong> To avoid this, use <b>"Specific file size"</b> or change the <b>Image File Extension</b> to same extension or <b>"Same as source".</b>        </p>    </div></div>`

Quality Preset

Quality preset

Target file size (%) (Best)

File size (%)

Auto Scale

Specific file size

File size

Image Quality (%)

Quality Percentage

Drop Frames

`
                    <div>
                        <strong>Frame dropping</strong> is the most effective way to compress an already optimized GIF.
                        <br><br>
                        A smooth GIF typically runs at <strong>10–15 FPS</strong>. If your file’s FPS (shown on the file card above) is higher, use these recommendations:
                        
                        <ul>
                            <li>
                                <strong>Above 20 FPS:</strong> Drop every 2nd frame.
                            </li>
                            <li>
                                <strong>15–20 FPS:</strong> Drop every 3rd frame.
                            </li>
                        </ul>

                        <small><em>Note: Dropping frames reduces file size by removing animation detail. Lower the number, the more frames you drop.</em></small>
                    </div>
                `

ORIGINAL

Frames To Drop

Image resolution

Resolution Percentage

By Percentage

Keep original

Preset Resolutions

Preset

Use as max resolution

Width (Keep aspect ratio)

Width

Height (Keep aspect ratio)

Height

Width x Height

Image quality (%)

FRAMERATE

Video Framerate

Framerate

Colors

By Color Reduction + Dither

Color Palette Size

Dither

Compression level

Compression speed

Compression Type

LOSSY

DEFLATE

PACKBITS

CCITT Fax 4

NONE

JPEG

WebP

ZSTD

JP2K (JPEG 2000)

Lossless?

No (Recommended)

Bit Depth

8-bit (Recommended)

16-bit (High Precision)

1-bit (Black & White)

Frame Selection

Specific Frame

Time (seconds)

Multiple Screenshots

Capture Rate

Convert ERF to PPM images online. Choose PPM bit depth (8-bit, 16-bit, or 1-bit) and keep original resolution for clean, compatible output.

Turn ERF images into PPM format in a few clicks, with bit-depth options for your output.

Convert ERF to PPM

Rate Convert ERF to PPM Tool