{"id":218,"date":"2026-09-03T01:36:18","date_gmt":"2026-09-02T16:36:18","guid":{"rendered":"https:\/\/jim-jin.com\/?page_id=218"},"modified":"2026-10-08T19:06:09","modified_gmt":"2026-10-08T10:06:09","slug":"picdownsize","status":"publish","type":"page","link":"https:\/\/jim-jin.com\/en\/picdownsize","title":{"rendered":"Image Compressor"},"content":{"rendered":"\n<!-- \u65e5\u672c\u8a9eWeb\u30d5\u30a9\u30f3\u30c8\u3092\u8aad\u307f\u8fbc\u307f -->\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin=\"\">\n\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Noto+Sans+JP:wght@600;700&amp;display=swap\" rel=\"stylesheet\">\n\n<section aria-labelledby=\"apple-hero-title\" style=\"\n    position: relative;\n    left: 50%;\n    width: 100vw;\n    min-height: 216px;\n    margin-left: -50vw;\n    padding: 50px 24px 32px;\n    box-sizing: border-box;\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    overflow: hidden;\n    background-color: #f4f4ff;\n    color: #1d1d1f;\n    text-align: center;\n    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont,\n      'Helvetica Neue', 'Hiragino Sans', 'Yu Gothic', Meiryo, sans-serif;\n    font-feature-settings: 'palt' 1;\n    -webkit-font-smoothing: antialiased;\n    text-rendering: optimizeLegibility;\n  \">\n  <div style=\"\n      width: 100%;\n      max-width: 1000px;\n      margin: 0 auto;\n    \">\n    <h1 id=\"apple-hero-title\" style=\"\n        margin: 0;\n        padding: 0;\n        border: 0;\n        background: none;\n        color: #1d1d1f;\n        font-family: inherit;\n        font-size: clamp(42px, 4vw, 64px);\n        font-weight: 700;\n        line-height: 1.08;\n        letter-spacing: -0.045em;\n      \">\n      Reduce image file size<br>\n      Free tool\n    <\/h1>\n\n    <p style=\"\n        max-width: 760px;\n        margin: 18px auto 0;\n        padding: 0;\n        color: #6e6e73;\n        font-family: inherit;\n        font-size: clamp(16px, 1.35vw, 20px);\n        font-weight: 600;\n        line-height: 1.45;\n        letter-spacing: -0.025em;\n      \">\n      Make image files lighter for sharing and publishing.\n    <\/p>\n\n    <div aria-label=\"Supported image formats\" style=\"\n        max-width: 820px;\n        margin: 26px auto 0;\n        padding: 18px 20px;\n        box-sizing: border-box;\n        border: 1px solid rgba(110, 110, 115, 0.18);\n        border-radius: 14px;\n        background-color: rgba(255, 255, 255, 0.68);\n      \">\n      <p style=\"\n          margin: 0 0 12px;\n          padding: 0;\n          color: #1d1d1f;\n          font-family: inherit;\n          font-size: 14px;\n          font-weight: 700;\n          line-height: 1.5;\n          letter-spacing: 0.02em;\n        \">\n        Supported image formats\n      <\/p>\n\n      <div style=\"\n          display: flex;\n          flex-wrap: wrap;\n          justify-content: center;\n          gap: 8px;\n        \">\n        <span style=\"\n            padding: 6px 12px;\n            border: 1px solid #d9d9ec;\n            border-radius: 999px;\n            background-color: #ffffff;\n            color: #424247;\n            font-size: 13px;\n            font-weight: 600;\n            line-height: 1.5;\n          \">JPEG (JPG)<\/span>\n\n        <span style=\"\n            padding: 6px 12px;\n            border: 1px solid #d9d9ec;\n            border-radius: 999px;\n            background-color: #ffffff;\n            color: #424247;\n            font-size: 13px;\n            font-weight: 600;\n            line-height: 1.5;\n          \">PNG<\/span>\n\n        <span style=\"\n            padding: 6px 12px;\n            border: 1px solid #d9d9ec;\n            border-radius: 999px;\n            background-color: #ffffff;\n            color: #424247;\n            font-size: 13px;\n            font-weight: 600;\n            line-height: 1.5;\n          \">WebP (still images)<\/span>\n\n        <span style=\"\n            padding: 6px 12px;\n            border: 1px solid #d9d9ec;\n            border-radius: 999px;\n            background-color: #ffffff;\n            color: #424247;\n            font-size: 13px;\n            font-weight: 600;\n            line-height: 1.5;\n          \">GIF and animated GIF<\/span>\n\n        <span style=\"\n            padding: 6px 12px;\n            border: 1px solid #d9d9ec;\n            border-radius: 999px;\n            background-color: #ffffff;\n            color: #424247;\n            font-size: 13px;\n            font-weight: 600;\n            line-height: 1.5;\n          \">APNG (animated PNG)<\/span>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n        <div class=\"jwtc-member-status jwtc-member-status--horizontal\" data-jwtc-member-status data-endpoint=\"https:\/\/jim-jin.com\/en\/?jwtc_action=jwtc_member_status\" role=\"region\" aria-label=\"Member sign-in status\">\n            <div class=\"jwtc-member-status__details\" aria-live=\"polite\" aria-atomic=\"true\" aria-busy=\"true\">\n                <span class=\"jwtc-member-status__avatar\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.5\"><circle cx=\"12\" cy=\"8\" r=\"3.5\"\/><path d=\"M5 21v-2a7 7 0 0 1 14 0v2\"\/><\/svg><\/span>\n                <span class=\"jwtc-member-status__person\"><strong data-member-field=\"name\">Hello<\/strong><small data-member-field=\"status\">Checking\u2026<\/small><\/span>\n                <span class=\"jwtc-member-status__plan\" data-member-field=\"plan\"><\/span>\n            <\/div>\n            <nav class=\"jwtc-member-status__links\" aria-label=\"Member menu\">\n                <a href=\"https:\/\/jim-jin.com\/en\/registration\">Create a free account or sign in<\/a>\n            <\/nav>\n            <p class=\"jwtc-member-status__error\" hidden>Could not check your sign-in status.<button type=\"button\" data-member-retry>Retry<\/button><\/p>\n            <noscript><p>Enable JavaScript to display your sign-in status. You can still open the account page using the links.<\/p><\/noscript>\n        <\/div>\n        \n\n\n<aside class=\"jwtc-registration-promo\" data-jwtc-registration-promo data-dismiss-days=\"7\" aria-label=\"Free registration information\"><span class=\"jwtc-registration-promo__icon\" aria-hidden=\"true\">\u2726<\/span><div class=\"jwtc-registration-promo__copy\"><span class=\"jwtc-registration-promo__eyebrow\">Higher limits with a free account<\/span><p><strong>Make everyday work easier with JIM-JIN.<\/strong><\/p><p>Create a free account to increase file count from 3 files to 10 files.<\/p><\/div><a class=\"jwtc-registration-promo__cta\" href=\"https:\/\/jim-jin.com\/en\/registration\">Create a free account<span aria-hidden=\"true\"> \u2192<\/span><\/a><button class=\"jwtc-registration-promo__close\" type=\"button\" aria-label=\"Dismiss this notice\">\u00d7<\/button><\/aside>\t\t<article data-jin-language=\"en\" lang=\"en\" id=\"jin-image-optimizer-1\" class=\"jin-image-tool\" data-image-optimizer>\n\t\t\t<header class=\"jin-image-tool__header\"><div class=\"jin-image-tool__logo\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/jim-jin.com\/en\/wp-content\/uploads\/2026\/09\/10-image-optimizer-300x300.png\" class=\"jin-image-tool__logo-image\" alt=\"\" title=\"Image Compressor\" srcset=\"https:\/\/jim-jin.com\/en\/wp-content\/uploads\/2026\/09\/10-image-optimizer-300x300.png 300w, https:\/\/jim-jin.com\/en\/wp-content\/uploads\/2026\/09\/10-image-optimizer-150x150.png 150w, https:\/\/jim-jin.com\/en\/wp-content\/uploads\/2026\/09\/10-image-optimizer.png 512w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div><h1>Image Compressor<\/h1><\/header>\n\t\t\t<section class=\"jin-image-tool__account\" aria-label=\"User information\"><span>Guest<\/span><span aria-hidden=\"true\">\uff5c<\/span><strong class=\"jin-image-tool__plan jin-image-tool__plan--free\">Free<\/strong><span>Not logged in<\/span><span class=\"jin-image-tool__limit\">Limits: 3 images \u00b7 Total 10MB \u00b7 Per image 10MB<\/span><\/section>\n\t\t\t<aside class=\"jin-image-tool__privacy\" role=\"note\" aria-label=\"Temporary image storage and deletion\"><span aria-hidden=\"true\">&#128274;<\/span><p>Selected images are temporarily sent to and stored on this server when needed for compression. They are deleted on download, completion or cancellation. Interrupted temporary data becomes unavailable after 60 minutes and is deleted by the next scheduled cleanup. Image contents and filenames are not stored in logs.<\/p><\/aside>\n\t\t\t<section class=\"jin-image-tool__intro\" aria-label=\"About this tool\"><h2>Reduce image file sizes together<\/h2><p>Select your images and start with the recommended settings. GIF animations and animated PNG files retain their animation.<\/p><\/section>\n\t\t\t<ol class=\"jin-image-steps\" aria-label=\"Workflow\"><li class=\"is-current\" data-step=\"1\"><span>1<\/span>Choose images<\/li><li data-step=\"2\"><span>2<\/span>Settings<\/li><li data-step=\"3\"><span>3<\/span>Review<\/li><li data-step=\"4\"><span>4<\/span>Save<\/li><\/ol>\n\t\t\t<section class=\"jin-image-workspace\" aria-label=\"Image optimization controls\">\n\t\t\t\t<div class=\"jin-image-panel\" data-panel=\"select\"><div class=\"jin-image-drop\" data-dropzone tabindex=\"0\" role=\"button\" aria-describedby=\"jin-image-optimizer-1-drop-help\"><span class=\"jin-image-drop__icon\" aria-hidden=\"true\">&#128444;<\/span><h2>Add images here<\/h2><p id=\"jin-image-optimizer-1-drop-help\">JPEG, PNG, WebP, GIF \/ animated GIF, Animated PNG supported<\/p><label class=\"jin-image-button jin-image-button--primary\">Choose images<input type=\"file\" accept=\".jpg,.jpeg,image\/jpeg,.png,image\/png,.webp,image\/webp,.gif,image\/gif,.apng\" multiple data-file-input><\/label><\/div><div class=\"jin-image-selected\" data-selected-list><p class=\"jin-image-empty\">No images selected yet.<\/p><\/div><div class=\"jin-image-actions\"><button type=\"button\" class=\"jin-image-button jin-image-button--primary\" data-next-settings disabled>Choose optimization settings<\/button><\/div><\/div>\n\t\t\t\t<div class=\"jin-image-panel\" data-panel=\"settings\" hidden><h2>Optimization settings<\/h2><div class=\"jin-image-modes\" role=\"radiogroup\" aria-label=\"Optimization settings\"><label><input type=\"radio\" name=\"jin-image-optimizer-1-mode\" value=\"quality\"><span><strong>Prioritize quality<\/strong><small>Keep the appearance as close as possible<\/small><\/span><\/label><label class=\"is-recommended\"><input type=\"radio\" name=\"jin-image-optimizer-1-mode\" value=\"recommended\"><span><em>Recommended<\/em><strong>Balanced<\/strong><small>Choose this if you are unsure<\/small><\/span><\/label><label><input type=\"radio\" name=\"jin-image-optimizer-1-mode\" value=\"small\"><span><strong>Prioritize size<\/strong><small>Save smaller files<\/small><\/span><\/label><\/div><div class=\"jin-image-settings-grid\"><label>Image dimensions<select data-max-edge><option value=\"0\">Keep unchanged<\/option><option value=\"2560\">Longest edge up to 2,560 px<\/option><option value=\"1920\">Longest edge up to 1,920 px<\/option><option value=\"1280\">Longest edge up to 1,280 px<\/option><option value=\"custom\">Custom<\/option><\/select><\/label><label data-custom-edge hidden>Maximum longest edge<input type=\"number\" min=\"64\" max=\"20000\" value=\"1920\" data-custom-edge-input> px<\/label><label>Output format<select data-output-format><option value=\"original\">Original format<\/option><option value=\"jpeg\">JPEG<\/option><option value=\"png\">PNG<\/option><option value=\"webp\">WebP<\/option><\/select><\/label><label data-background-field hidden>Background color for transparent areas<input type=\"color\" data-background><\/label><\/div><p class=\"jin-image-note\">Animations keep their original format. Frames and playback speed remain unchanged.<\/p><div class=\"jin-image-actions\"><button type=\"button\" class=\"jin-image-button\" data-back-select>Back<\/button><button type=\"button\" class=\"jin-image-button jin-image-button--primary\" data-next-confirm>Review settings<\/button><\/div><\/div>\n\t\t\t\t<div class=\"jin-image-panel\" data-panel=\"confirm\" hidden><h2>Optimize with these settings<\/h2><div class=\"jin-image-confirm\" data-confirm-summary><\/div><label class=\"jin-image-confirm-check\"><input type=\"checkbox\" data-server-consent> I have reviewed temporary server uploads and the deletion details shown on this page<\/label><div class=\"jin-image-actions\"><button type=\"button\" class=\"jin-image-button\" data-back-settings>Back<\/button><button type=\"button\" class=\"jin-image-button jin-image-button--primary\" data-start disabled>Start optimization<\/button><\/div><\/div>\n\t\t\t\t<div class=\"jin-image-panel\" data-panel=\"progress\" hidden aria-busy=\"true\"><h2>Optimizing images<\/h2><p data-progress-text>Preparing\u2026<\/p><progress max=\"100\" value=\"0\" data-progress><\/progress><div class=\"jin-image-actions\"><button type=\"button\" class=\"jin-image-button jin-image-button--danger\" data-cancel>Cancel processing<\/button><\/div><\/div>\n\t\t\t\t<section class=\"jin-image-results\" aria-labelledby=\"jin-image-optimizer-1-results-title\"><div class=\"jin-image-results__heading\"><div><p class=\"jin-image-eyebrow\">Results<\/p><h2 id=\"jin-image-optimizer-1-results-title\">Optimized images<\/h2><\/div><p data-results-summary>After processing, the original and optimized sizes appear here.<\/p><\/div><div class=\"jin-image-results__list\" data-results-list><div class=\"jin-image-result-placeholder\"><span aria-hidden=\"true\">&#10003;<\/span><p>No results yet<\/p><\/div><\/div><div class=\"jin-image-results__actions\"><button type=\"button\" class=\"jin-image-button jin-image-button--primary\" data-download-all disabled>Save all as ZIP<\/button><button type=\"button\" class=\"jin-image-button\" data-delete-job disabled>Finish and delete<\/button><\/div><\/section>\n\t\t\t<\/section>\n\t\t\t<p class=\"screen-reader-text\" aria-live=\"polite\" data-live><\/p>\n\t\t<template data-jin-text=\"step-current\">Current step<\/template>\n<template data-jin-text=\"step-visited\">Visited step<\/template>\n<template data-jin-text=\"step-upcoming\">Upcoming<\/template>\n<template data-jin-text=\"message-001\">Choose at least one image.<\/template>\n<template data-jin-text=\"message-002\">You can select up to {v0} images.<\/template>\n<template data-jin-text=\"message-003\">{v0} is unsupported. Choose from {v1}.<\/template>\n<template data-jin-text=\"message-004\">{v0} exceeds the per-image limit of {v1}.<\/template>\n<template data-jin-text=\"message-005\">The total size limit is {v0}. The current total is {v1}.<\/template>\n<template data-jin-text=\"message-006\">No images selected yet.<\/template>\n<template data-jin-text=\"message-007\">Move up<\/template>\n<template data-jin-text=\"message-008\">Move down<\/template>\n<template data-jin-text=\"message-009\">Remove<\/template>\n<template data-jin-text=\"message-010\">{v0} images \u00b7 Total {v1}<\/template>\n<template data-jin-text=\"message-011\">Prioritize quality<\/template>\n<template data-jin-text=\"message-012\">Recommended<\/template>\n<template data-jin-text=\"message-013\">Prioritize size<\/template>\n<template data-jin-text=\"message-014\">Original format<\/template>\n<template data-jin-text=\"message-015\">Longest edge up to {v0} px<\/template>\n<template data-jin-text=\"message-016\">Keep dimensions unchanged<\/template>\n<template data-jin-text=\"message-017\">&lt;p&gt;&lt;strong&gt;{v0} images&lt;\/strong&gt;&lt;span&gt;Total {v1}&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;strong&gt;{v2}&lt;\/strong&gt;&lt;span&gt;{v3} \u00b7 {v4}&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;strong&gt;Temporary storage&lt;\/strong&gt;&lt;span&gt;If interrupted, data becomes unavailable after {v5} minutes and is deleted at the next cleanup&lt;\/span&gt;&lt;\/p&gt;<\/template>\n<template data-jin-text=\"message-018\">Processing image {v0}<\/template>\n<template data-jin-text=\"message-019\">&lt;span aria-hidden=\"true\"&gt;&amp;#10003;&lt;\/span&gt;&lt;p&gt;No results yet&lt;\/p&gt;<\/template>\n<template data-jin-text=\"message-020\">After processing, the original and optimized sizes appear here.<\/template>\n<template data-jin-text=\"message-021\">{v0}% smaller<\/template>\n<template data-jin-text=\"message-022\">About the same size<\/template>\n<template data-jin-text=\"message-023\">{v0} \u2192 {v1} ({v2})<\/template>\n<template data-jin-text=\"message-024\">The image is ready.<\/template>\n<template data-jin-text=\"message-025\">Save this image<\/template>\n<template data-jin-text=\"message-026\">Retry this image<\/template>\n<template data-jin-text=\"message-027\"> \u00b7 {v0} images need review<\/template>\n<template data-jin-text=\"message-028\">{v0} images completed{v1}<\/template>\n<template data-jin-text=\"message-029\">Preparing<\/template>\n<template data-jin-text=\"message-030\">This image could not be processed.<\/template>\n<template data-jin-text=\"message-031\">Completed through image {v0}<\/template>\n<template data-jin-text=\"message-032\">{v0} images have been processed.<\/template>\n<template data-jin-text=\"message-033\">Processing was cancelled and temporary server data was deleted.<\/template>\n<template data-jin-text=\"message-034\">Processing could not be completed.<\/template>\n<template data-jin-text=\"message-035\">Saving all images together may place a heavy load on your device. Continue? If this is difficult, save images individually.<\/template>\n<template data-jin-text=\"message-036\">Task data has been deleted.<\/template>\n<template data-jin-text=\"binary-error-001\">Could not verify GIF content.<\/template>\n<template data-jin-text=\"binary-error-002\">Animated WebP is currently unsupported.<\/template>\n<template data-jin-text=\"binary-error-003\">This image is unsupported. Use JPEG, PNG, WebP or GIF.<\/template>\n<template data-jin-text=\"binary-error-004\">Processing stopped because the image appearance could not be safely preserved.<\/template>\n<template data-jin-text=\"binary-error-005\">Could not verify JPEG structure.<\/template>\n<template data-jin-text=\"binary-error-006\">The JPEG ends prematurely.<\/template>\n<template data-jin-text=\"binary-error-007\">Could not verify JPEG boundaries.<\/template>\n<template data-jin-text=\"binary-error-008\">Could not verify the complete JPEG.<\/template>\n<template data-jin-text=\"binary-error-009\">This is not a PNG image.<\/template>\n<template data-jin-text=\"binary-error-010\">The PNG ends prematurely.<\/template>\n<template data-jin-text=\"binary-error-011\">Could not verify PNG structure.<\/template>\n<template data-jin-text=\"binary-error-012\">The GIF ends prematurely.<\/template>\n<template data-jin-text=\"binary-error-013\">The GIF ends prematurely.<\/template>\n<template data-jin-text=\"binary-error-014\">The GIF ends prematurely.<\/template>\n<template data-jin-text=\"binary-error-015\">The GIF ends prematurely.<\/template>\n<template data-jin-text=\"binary-error-016\">Could not verify GIF structure.<\/template>\n<template data-jin-text=\"binary-error-017\">This is not a WebP image.<\/template>\n<template data-jin-text=\"binary-error-018\">The WebP ends prematurely.<\/template>\n<template data-jin-text=\"binary-error-019\">The combined size exceeds the ZIP limit. Save individually.<\/template>\n<template data-jin-text=\"browser-optimized\">Unnecessary metadata was removed in your browser.<\/template>\n<template data-jin-text=\"browser-original\">These settings could not reduce the size further, so the original image is provided.<\/template>\n<template data-jin-text=\"request-failed\">Could not complete the request. Wait and retry.<\/template>\n<template data-jin-text=\"result-failed\">Could not receive the optimized image.<\/template>\n<span hidden data-jin-language-fallback><template data-jin-text=\"step-current\">\u73fe\u5728\u306e\u624b\u9806<\/template>\n<template data-jin-text=\"step-visited\">\u78ba\u8a8d\u3057\u305f\u624b\u9806<\/template>\n<template data-jin-text=\"step-upcoming\">\u3053\u308c\u304b\u3089<\/template>\n<template data-jin-text=\"message-001\">\u753b\u50cf\u30921\u679a\u4ee5\u4e0a\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/template>\n<template data-jin-text=\"message-002\">\u9078\u629e\u3067\u304d\u308b\u753b\u50cf\u306f{v0}\u679a\u307e\u3067\u3067\u3059\u3002<\/template>\n<template data-jin-text=\"message-003\">{v0}\u306f\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u305b\u3093\u3002{v1}\u304b\u3089\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/template>\n<template 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aria-labelledby=\"guide-picdownsize-title\">\n<header class=\"jj-guide__intro\"><p class=\"jj-guide__eyebrow\">How-to guide <span aria-hidden=\"true\">\/<\/span> Image Compressor<\/p><h2 id=\"guide-picdownsize-title\">Check image appearance while reducing file size.<\/h2><p class=\"jj-guide__lead\">Select several images and balance visual quality against file size. Set dimensions and output format to prepare images for websites or attachments. Animated GIF and PNG are supported too.<\/p><div class=\"jj-guide__tags\" aria-label=\"Key features\"><span>Three compression modes<\/span><span>Adjust image dimensions<\/span><span>Supports animation<\/span><\/div><\/header>\n<section class=\"jj-guide__section\" aria-labelledby=\"guide-picdownsize-1\"><div class=\"jj-guide__section-title\"><span class=\"jj-guide__index\" aria-hidden=\"true\">01<\/span><h2 id=\"guide-picdownsize-1\">How to use<\/h2><\/div><ol class=\"jj-guide__steps\"><li><span class=\"jj-guide__step-label\">STEP 01<\/span><h3>Add images<\/h3><p>Add JPEG, PNG, WebP, GIF or animated PNG using the button or drag and drop.<\/p><\/li><li><span class=\"jj-guide__step-label\">STEP 02<\/span><h3>Choose a compression mode<\/h3><p>Choose Recommended if unsure. Set the maximum long edge, output format and background for transparent areas as needed.<\/p><\/li><li><span class=\"jj-guide__step-label\">STEP 03<\/span><h3>Review and start<\/h3><p>Review the selected images, settings, temporary upload and deletion information, then start compression. Keep the page open and follow the progress display.<\/p><\/li><li><span class=\"jj-guide__step-label\">STEP 04<\/span><h3>Review and save<\/h3><p>Compare original and output sizes and check appearance. Save the results, then use Finish and delete to end the work.<\/p><\/li><\/ol><\/section>\n<section class=\"jj-guide__section\" aria-labelledby=\"guide-picdownsize-2\"><div class=\"jj-guide__section-title\"><span class=\"jj-guide__index\" aria-hidden=\"true\">02<\/span><h2 id=\"guide-picdownsize-2\">Choosing output settings<\/h2><\/div><dl class=\"jj-guide__definitions\"><div><dt>Prioritize quality<\/dt><dd>Choose this to preserve appearance as much as possible. File size reduction varies by image.<\/dd><\/div><div><dt>Recommended and prioritize size<\/dt><dd>Recommended balances quality and size. Prioritize size aims for smaller files. Check fine text and edges in the output.<\/dd><\/div><div><dt>Image dimensions<\/dt><dd>Choose a maximum long edge or enter a custom value. Use the dimensions needed at the destination.<\/dd><\/div><div><dt>Output format and transparency<\/dt><dd>For still images, choose the original format, JPEG, PNG or WebP. Converting a transparent image to JPEG requires a background color.<\/dd><\/div><div><dt>Animation<\/dt><dd>GIF remains GIF, and animated PNG retains its format. Frames are not dropped and playback speed is not changed.<\/dd><\/div><\/dl><figure class=\"jj-guide__example\"><figcaption>Resize images for a website<\/figcaption><p>Add a large photo, choose Recommended and set a suitable long edge for the website. Check text, detail and file size before saving.<\/p><\/figure><\/section>\n<section class=\"jj-guide__section\" aria-labelledby=\"guide-picdownsize-3\"><div class=\"jj-guide__section-title\"><span class=\"jj-guide__index\" aria-hidden=\"true\">03<\/span><h2 id=\"guide-picdownsize-3\">Useful for<\/h2><\/div><div class=\"jj-guide__uses\"><section><h3>Web publishing<\/h3><p>Reduce the size of images visitors need to load.<\/p><\/section><section><h3>Email attachments<\/h3><p>Adjust attachment size while retaining the appearance you need.<\/p><\/section><section><h3>Organizing animated images<\/h3><p>Compress GIF and APNG while preserving animation.<\/p><\/section><\/div><\/section>\n<section class=\"jj-guide__section\" aria-labelledby=\"guide-picdownsize-4\"><div class=\"jj-guide__section-title\"><span class=\"jj-guide__index\" aria-hidden=\"true\">04<\/span><h2 id=\"guide-picdownsize-4\">Processing and data<\/h2><\/div><p>Images may be temporarily uploaded to and stored on this site&#8217;s server for compression when needed. They are deleted on download, finish or cancellation. Interrupted data becomes unavailable after 60 minutes and is removed by automatic cleanup. Review the upload and deletion information shown in the tool.<\/p><\/section>\n<section class=\"jj-guide__section\" aria-labelledby=\"guide-picdownsize-5\"><div class=\"jj-guide__section-title\"><span class=\"jj-guide__index\" aria-hidden=\"true\">05<\/span><h2 id=\"guide-picdownsize-5\">Frequently asked questions<\/h2><\/div><div class=\"jj-guide__faq\"><details><summary>Will the file always become smaller?<\/summary><div><p>Already optimized images may shrink little. When format and dimensions remain unchanged, the original image may be used if the processed file is larger.<\/p><\/div><\/details><details><summary>Can I use HEIC or SVG?<\/summary><div><p>HEIC\/HEIF, SVG, TIFF, RAW, PDF and video are excluded. Prepare a supported format.<\/p><\/div><\/details><details><summary>Is quality preserved?<\/summary><div><p>Appearance may change depending on settings and format. Zoom in to inspect output, particularly when prioritizing size or resizing.<\/p><\/div><\/details><details><summary>What if processing fails?<\/summary><div><p>Check format, size, image count and the on-screen guidance. It may be possible to retry only the failed images.<\/p><\/div><\/details><\/div><\/section>\n<footer class=\"jj-guide__footer\"><span>Image Compressor<\/span><a href=\"#jin-image-optimizer-1\">Back to tool <span aria-hidden=\"true\">\u2191<\/span><\/a><\/footer><\/article>\n","protected":false},"excerpt":{"rendered":"<p>Reduce image file size Free tool Make image files lighter for sharing and publishing. Supported image formats JPEG (JPG) PNG WebP (still images) GIF and animated GIF APNG (animated PNG) How-to guide \/ Image Compressor Check image appearance while reducing file size. 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