Compress PDF, reduce PDF file size for Free

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src="/statics/images/functionToCompress.svg" alt="CleverPDF Compress PDF" style="margin-left:0;"/><h1 class="function_titleToCompress"id="compress_head" >Compress PDF</h1> <h2 class="function_title_promit"id="compress_promit">Efficiently reduce PDF file size online, multiple options are available.</h2> </div> <div class="advertisement_banner"> <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script><ins class="adsbygoogle" style="display:inline-block;width:728px;height:90px" data-ad-client="ca-pub-5488736328646914" data-ad-slot="5523268150"></ins><script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> </div> <div class="function_box" id="choosefile"> <div class="function_choosefile"> <div class="function_choosefile_input"> <div class="canvas_container" id="container"> <div class="canvas_box"> <canvas id="the-canvas" class="canvas_img" style="width:112px;height:145px;"></canvas> <div class="canvas_title"></div> <a class="canvas_delete"><img src="/statics/images/canvas_delete.png" alt="canvas delete"/></a> </div> </div> <div class="input_box openCompress" id="chooseInput"> <span id="choose_file"><label for="openPdf">Choose file</label></span> <input type="file" id="openPdf" accept="pdf" name="files" /> <div class="input_box_ship"> <ul> <li><img src="/statics/images/inputShipGoogle_1.png" onclick="loadPicker()" alt="Import from Google Drive"/><span>From Google Drive</span></li> <li><img src="/statics/images/inputShipDropbox_1.png" alt="Import from Dropbox"/><span>From Dropbox</span><div id="dropbox-container"></div></li> </ul> </div> </div> <div class="input_box openCompress" id="startConversion" style="display:none;"> <button class="input_box_conversion" type="button" onclick="conversionValidate()"id="choosefile_title">Start conversion</button> </div> </div> <div class="function_choosefile_font"id="choosefile_font">Or drag and drop files here</div> </div> <form id="filesUpload" action='pdf/uploadFiles' method='post' enctype='multipart/form-data'> <input type="hidden" name="files" id="fileUpload" value=""/> </form> <form id="signupListImportForm" class="import-file-form" enctype="multipart/form-data"> <input type="hidden" name="url" value=""/> <input type="hidden" name="index" value=""/> <input type="hidden" name="pid" id="PDFID" value="3"/> <input type="hidden" name="oid" value="5"/> <input type="hidden" name="status" value=""/> <input type="hidden" name="pwd" value=""/> <input type="hidden" name="formatv1" value="1"/> <input type="hidden" name="formatv2" value=""/> </form> <div class="flex-grid"> <div class="function_format row flex-just-center function_format_Compress"> <div class="cell"> <div class="function_format_title" id="compress_format_title">Compressing option</div> <div class="active-container function_format_radios" style="margin-bottom:0;"> <label class="input-control radio function_format_radio"> <input type="radio" name="compressing" checked="" value="1"> <span class="check"></span> <span class="caption" id="compress_format_caption">Minimum - don't compress image, optimize font and data only</span> </label> <label class="input-control radio function_format_radio"> <input type="radio" name="compressing" value="2"> <span class="check"></span> <span class="caption" id="compress_format_caption_low">Low compression - High image quality, larger file</span> </label> <label class="input-control radio function_format_radio"> <input type="radio" name="compressing" value="3"> <span class="check"></span> <span class="caption"id="compress_format_caption_medium">Medium compression - Medium image quality</span> </label> </div> </div> <div class="function_format_radios function_format_right cell" style="margin-top:0;"> <div class="title" style="width:300px;"> </div> <label class="input-control radio" style="margin-top:0;"> <input type="radio" name="compressing" value="4"> <span class="check"></span> <span class="caption"id="compress_format_caption_max">Maximum - Low image quality, smallest file size</span> </label> <label class="input-control radio"> <input type="radio" name="compressing" value="5"> <span class="check"></span> <span class="caption" id="compress_format_caption_quality">Customize image quality<input name="quality" id="quality" readonly value="" type="" style="width: 47px;height: 30px; line-height: 30px; background:#f0f0f0;border: 1px solid #d0d0d0;border-radius: 4px;font-size: 14px; color: #848484;text-align: center;margin: 0 5px;"/>(Poor 1-100 Best) </span> </label> </div> </div> </div> </div> <div class="function_box" id="progress_up" style="display: none;"> <div class="function_progress"> <div class="function_progress_img"> <img src="/statics/images/function_progress_img.png" alt="File processing"/> </div> <div class="function_progress_font"id="file_uploading">File Uploading <span id="spanUploadBar">65</span></div> <div class="progress small function_progress_box" data-role="progress" id="spanUploadPercent"></div> </div> </div> <div class="function_box" id="progress_transformation" style="display: none;"> <div class="function_progress"> <div class="function_progress_img"> <img src="/statics/images/function_progress_img1.png" alt="File converting"/> </div> <div class="function_progress_font"id="file_processing"><span id="progress_transformation_num"></span></div> <div class="progress small function_progress_box" id="progress_transformation_bg"> <div class="bar default" style="width: 50%;"></div> </div> </div> </div> <div class="function_box" id="error_box" style="display: none;"> <div class="function_error"> <div class="function_error_password" id="error_password"> <div class="function_error_title"id="combine_error_title">This is an encrypted file</div> <div class="function_error_font"id="combine_error_title_font">This file is encrypted by open password, we can't get access to the content. Please enter the correct open password, and try to convert it again.</div> <div class="function_error_text"><input type="password" id="txtPwd" placeholder="Please enter the password" /> </div> <div class="function_error_buttons"><input type="button" onclick="conversionPasswrod()" id="convert_again"value="Convert this file again"/></div> </div> <div class="function_error_password" id="error_passwordEncrypt"> <div class="function_error_font"id="combine_error_title_font_two">This is an encrypted file </div> <div class="function_error_font"id="watermark_error_title_two">This file is encrypted, please select another file or use the Unlock PDF function.</div> <div class="function_error_buttons"><input type="button" class="function_error_button" onclick="conversionAnother()"id="select_file" value="Select another file"/><a href="/unlock-pdf"id="unlock_pdf">Unlock PDF</a></div> </div> <div class="function_error_password" id="error_bigger"> <div class="function_error_title"id="watermark_error_title_three">The selected file is too large.</div> <div class="function_error_font"id="watermark_error_font_two">Please select a file less than 20 MB. Or purchase CleverPDF for Windows, convert larger files without limitations.</div> <div class="function_error_buttons"><input type="button" class="function_error_button" onclick="conversionAnother()"id="try_another_file" value="Try another file"/><a href="/pdf-converter?utm_source=bigfile&utm_medium=website"id="problem_help">Download Desktop Version</a></div> </div> <div class="function_error_password" id="error_try"> <div class="function_error_title"id="watermark_error_title_four">Not a normal file</div> <div class="function_error_font"id="watermark_error_font_three">This file may be damaged or not a normal PDF file. Please try another PDF.</div> <div class="function_error_buttons"><input type="button" class="function_error_button" onclick="conversionAnother()"id="try_another_file_two" value="Try another file"/><a href="/help"id="problem_help_two">Problem Help</a></div> </div> <div class="function_error_password" id="error_format"> <div class="function_error_title"id="watermark_error_title_five">Incorrect input format</div> <div class="function_error_font"id="watermark_error_font_four">The file format you selected is not supported by this feature, please select the correct input format.</div> <div class="function_error_buttons"><input type="button" class="function_error_button" onclick="conversionAnother()" id="try_another_file_three"value="Try another file"/><a href="/help"id="problem_help_three">Problem Help</a></div> </div> <div class="function_error_password" id="error_compress"> <div class="function_error_title"id="combine_error_title_sorry">Sorry</div> <div class="function_error_font"id="combine_error_font_sorry">Please try another option. If maximum compression can’t make it any smaller, the original file may be already compressed very well. Sorry.</div> <div class="function_error_buttons"><input type="button" class="function_error_button" onclick="conversionAnother()" value="Try another file"/><input type="button" onclick="conversionAgain1()" value="Convert this file again"/></div> </div> <div class="function_error_password" id="error_more"> <div class="function_error_title"id="watermark_error_title_six">Multiple files not supported</div> <div class="function_error_font"id="watermark_error_font_five">Please upload one file only, this feature does not support multiple files.</div> <div class="function_error_buttons"><input type="button" class="function_error_button" onclick="conversionAnother()"id="try_another_file_four" value="Try another file"/><a href="/help"id="problem_help_four">Problem Help</a></div> </div> </div> </div> <div class="grid"> <div class="row cells12 function_banner" id="productWin"> <div class=" cell colspan6 function_banner_box"> <div class="img"><a data-fancybox href="https://www.youtube.com/embed/fowcgijOiFc?rel=0" ><img src="/statics/images/win-ads.jpg" alt="CleverPDF Preview thumbnail"/> <p>Watch video</p></a></div> <div class="detail"> <h3 >Desktop version: 24-in-1 CleverPDF for Windows</h3> <span >More productive way for PDF to Word conversion and other 24 PDF tasks. Desktop version doesn't require the Internet Connection, support batch processing and larger files. </span> </div> </div> <div class="function_banner_button cell colspan3"> <a href="https://www.cleverpdf.com/uploadfile/cleverpdf-v300.exe" target="_blank" class="Free">Free Download</a> <a href="https://www.cleverpdf.com/pdf-converter" target="_blank" class="Learn" >Learn More</a> </div> </div> <div class="row cells12 function_banner" id="productMac"> <div class=" cell colspan6 function_banner_box"> <div class="img"><a data-fancybox href="https://www.youtube.com/embed/GEY_1YRDgjA?rel=0" ><img src="/statics/images/function_banner_mac.png" alt="CleverPDF Mac Preview thumbnail"/> <p>Watch video</p></a></div> <div class="detail"> <h3 id="">Desktop version: 20-in-1 CleverPDF for Mac</h3> <span id="">More productive way for PDF to Word conversion and other 20 PDF tasks. Desktop version doesn't require the Internet Connection, support batch processing and larger files. </span> </div> </div> <div class="function_banner_button cell colspan3"> <a href="https://www.cleverpdf.com/uploadfile/cleverpdf-v304.dmg" target="_blank" class="Free" id="">Free Download</a> <a href="https://www.cleverpdf.com/pdf-converter-mac" target="_blank" class="Learn" id="">Learn More</a> </div> </div> </div> <div class="grid function_lists"> <div class="row cells2 function_list"> <div class="cell"> <img src="/statics/images/function_list24.svg" alt="CleverPDF feature 9" class="function_list_img"/> <div class="function_list_detail"> <h3 id="compress_left_title_one">Reduce the size of your PDF easily online</h3> <span id="compress_left_text_one">Shrink PDF file by optimizing the images size and quality, and removing unnecessary data, so you can send a smaller email attachment, or save your disk space. You'll be surprised when a large PDF file is compressed to a smaller file without lossing lots of the details.</span> </div> </div> <div class="cell"> <img src="/statics/images/function_list10.svg" alt="CleverPDF feature 10" class="function_list_img"/> <div class="function_list_detail"> <h3 id="compress_right_title_one">Great balance between file size and quality</h3> <span id="compress_right_text_one">You can choose the compressing option as you like. It is recommended to try the default option at first, usually it can make PDF smaller and keep high-quality image. If it doesn't work as expected, you can compress the PDF again with other options without uploading the file again..</span> </div> </div> </div> <div class="row cells2 function_list"> <div class="cell"> <img src="/statics/images/function_list3.svg" alt="CleverPDF feature 3" class="function_list_img"/> <div class="function_list_detail"> <h3 id="compress_left_title_two">Safe and free PDF compressing service</h3> <span id="compress_left_text_two">Your privacy is guaranteed since no one gets access to your files during the whole PDF compressing progress. File is uploaded via encrypted SSL network and your files will be erased permanently from the server after 30 mins. No sign-up or membership required, upload file anonymously. </span> </div> </div> <div class="cell"> <img src="/statics/images/function_list4.svg" alt="CleverPDF feature 4" class="function_list_img"/> <div class="function_list_detail"> <h3 id="compress_right_title_two">Shrink PDF in the cloud for free</h3> <span id="compress_right_text_two">It works like a magic in the web browser, you don't need to install any software for your file compressing task. It works on any platform and devices. Unlike the other online PDF services, CleverPDF doesn't require membership or subscription to unlock more features. You can use this free service forever.</span> </div> </div> </div> <div class="row function_list"> <div class="cell"> <img src="/statics/images/function_list_guide.svg" class="function_list_img" alt="CleverPDF How-to Guide"/> <div class="function_list_detail"> <h2 id="guide">How to Compress PDF Online?</h2> <span id=""> <ol> <li>Choose and upload the PDF file to 'Compress PDF' tool. <br/></li> <li>Select a compressing option, It's recommended to try the Medium compressing at first, you can try other options if the file size is not small enough. <br/></li> <li>Click 'Start Conversion' to begin the online PDF compressing. <br/></li> <li>Once finished, you can see the file size after compressing and download the compressed file. If the result is not good, click 'Convert this file again' to select another option. <br/></li> </ol> </span> </div> </div> </div> </div> </section> </div> <footer class="footer"> <div class="footer_keep"> <div class="footer_keep_box"> <ul> <li class="font" id="keep_touch">Follow us on</li> <li class="img"><a href="https://www.facebook.com/Cleverpdf-464751560559905/"><img src="/statics/images/keep_1_1.svg" alt="Follow CleverPDF on Facebook"/></a></li> <li class="img"><a href="https://twitter.com/cleverpdf"><img src="/statics/images/keep_2_1.svg" alt="Follow CleverPDF on Twitter"/></a></li> <li class="img"><a href="https://www.youtube.com/channel/UCdBicppgdgMiij_ajin3kMw"><img src="/statics/images/keep_3_1.svg" alt="CleverPDF YouTube Channel"/></a></li> </ul> </div> </div> <div class="footer_print"> <div class="footer_center"> <div class="footer_link"> <a href="/privacy" class="first" id="privacy_terms">Privacy and Terms</a> <a href="/about-us" id="about_ab">About CleverPDF</a> <a href="/help" id="help_guide">Help and guide</a> <a href="/contact" id="con_us">Contact US</a> <a href="/pdf-converter" id="desk_store" >Desktop Software Store</a> </div> <div class="footer_font">Copyright © 2020 CleverPDF. 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All Rights Reserved</div> </div> </footer> <script type="text/javascript" src="statics/js/jquery-1.7.1.min.js"></script> <script type="text/javascript" src="statics/js/i18n/jquery.json-2.3.min.js"></script> <script type="text/javascript" src="statics/js/i18n/jquery.i18n.properties-1.0.9.js"></script> <link rel="stylesheet" href="/statics/css/jquery.fancybox.min.css" type="text/css" media="screen" /> <script async type="text/javascript" src="/statics/js/jquery.fancybox.min.js"></script><script type="text/javascript" src="https://s.skimresources.com/js/176791X1645789.skimlinks.js"></script> <script> var u = navigator.userAgent, app = navigator.appVersion; var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Linux') > -1; //g var isIOS = u.indexOf('Mac OS') > -1 ; //ios终端 var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows"); if (isAndroid) { //这个是安卓操作系统 $("#isWindow").show(); $("#productWin").show(); } if (isIOS) { //这个是ios操作系统 $("#isMac").show(); $("#productMac").show(); } if(isWin){ $("#isWindow").show(); $("#productWin").show(); } </script> <script type="application/ld+json">{"@context":"http://schema.org","@type":"HowTo","name":"How to Compress PDF Online?","url":"https://www.cleverpdf.com/compress-pdf","inLanguage":"en","step":[{"@type":"HowToStep","position":1,"text":"Choose and upload the PDF file to 'Compress PDF' tool. "},{"@type":"HowToStep","position":2,"text":"Select a compressing option, It's recommended to try the Medium compressing at first, you can try other options if the file size is not small enough. "},{"@type":"HowToStep","position":3,"text":"Click 'Start Conversion' to begin the online PDF compressing. "},{"@type":"HowToStep","position":4,"text":"Once finished, you can see the file size after compressing and download the compressed file. If the result is not good, click 'Convert this file again' to select another option. "}]}</script> </body> <script src="/statics/js/jquery.tips.js"></script> <script src="/statics/js/upload/jquery.form.js"></script> <script src="/statics/js/upload/cleverpdf.upload.js"></script> <script src="/statics/js/dialog.js"></script> <script src="/statics/js/upload/common.js"></script> <script type="text/javascript"> $(function () { //傳入的參數，為該 divUploadArea 區塊中，所有 DOM 对象(控件) 的 id 編號，如: divUploadArea1、spanUploadSelect1、WizardWuFileUpload1、... $(this).loadUploadContent(""); //載入第一個上傳區塊 divUploadArea1 所需要的 form 及 jQuery 內容 //$(this).loadUploadContent('2'); //載入第二個上傳區塊 divUploadArea2 所需要的 form 及 jQuery 內容 }); </script> <script src="/statics/js/pdf.js"></script> <script src="/statics/js/upload/dropbox.js"></script> <script src="https://apis.google.com/js/api.js"></script> <script src="/statics/js/storage/google/driver.js"></script> <script type="text/javascript"> function showPdf(obj) { var container = document.getElementById("container"); container.style.display = "block"; $(".function_choosefile").addClass("function_choosefile_addPadding"); var url = obj; PDFJS.workerSrc = '/statics/js/pdf.worker.js'; PDFJS.getDocument(url).then(function getPdfHelloWorld(pdf) { // // Fetch the first page // pdf.getPage(1).then(function getPageHelloWorld(page) { var scale = 0.3; var viewport = page.getViewport(scale); // // Prepare canvas using PDF page dimensions // var canvas = document.getElementById('the-canvas'); var context = canvas.getContext('2d'); canvas.height = viewport.height; canvas.width = viewport.width; // // Render PDF page into canvas context // var renderContext = { canvasContext: context, viewport: viewport }; page.render(renderContext); }); }); } function startConversion(){ var formatv1 = $("input[name='formatv1']").val(); var formatv2 = $("input[name='formatv2']").val(); if(formatv1==5){ var quality=$("#quality").val(); if(quality=="" || quality==null){ $("#quality").tips({ side : 3, msg : "Please enter a custom image quality", bg : '#f9f9f9', color:'#ef2f61', time : 2 }); return; }else if(!/^[0-9]*[1-9][0-9]*$/.test(quality)||quality>100){ $("#quality").tips({ side : 3, msg : "Please enter a custom image quality", bg : '#f9f9f9', color:'#ef2f61', time : 2 }); return; }else{ $("[name='formatv2']").val(quality); } if( formatv2=="" || formatv2==null){ $("#quality").tips({ side : 3, msg : "Please enter a custom image quality", bg : '#f9f9f9', color:'#ef2f61', time : 2 }); return; } var formatv2 = $("input[name='formatv2']").val(); } var pwd=$("#txtPwd").val(); $("[name='pwd']").val(pwd); ajaxConversion('downCompress'); } $(function(){ loadSubmit(); fileFn1(); $("[name='compressing']").change(function(){ $("[name='formatv1']").val($(this).val()); if($(this).val()==5){ $("#quality").attr("readonly",false); $("#quality").css({"background":"#fff"}); }else{ $("#quality").attr("readonly",true); $("#quality").css({"background":"#f0f0f0"}); } }) $("#quality").blur(function(){ var val=$(this).val(); if(val=="" || val==null){ $("#quality").tips({ side : 3, msg : "Please enter a custom image quality", bg : '#f9f9f9', color:'#ef2f61', time : 2 }); return; }else if(!/^[0-9]*[1-9][0-9]*$/.test(val)||val>100){ $("#quality").tips({ side : 3, msg : "Please enter a custom image quality", bg : '#f9f9f9', color:'#ef2f61', time : 2 }); return; }else{ $("[name='formatv2']").val(val); } }) }) </script> </html>

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